Use json for data fixtures

Fixtures are not typically accessed directly by humans; they're only
used to serialise data which is read by the management command.

Serialise them as JSON, which can be done with Python's built-in json
module. Drop the unnecessary dependency on pyyaml.

Author: WhyNotHugo

django_afip/fixtures/clientvatcondition.yaml

@@ -0,0 +1 @@
+[{"model": "afip.concepttype", "fields": {"code": "1", "description": "Producto", "valid_from": "2010-09-17", "valid_to": null}}, {"model": "afip.concepttype", "fields": {"code": "2", "description": "Servicios", "valid_from": "2010-09-17", "valid_to": null}}, {"model": "afip.concepttype", "fields": {"code": "3", "description": "Productos y Servicios", "valid_from": "2010-09-17", "valid_to": null}}]

django_afip/fixtures/concepttype.json

@@ -0,0 +1 @@
+[{"model": "afip.currencytype", "fields": {"code": "PES", "description": "Pesos Argentinos", "valid_from": "2009-04-03", "valid_to": null}}, {"model": "afip.currencytype", "fields": {"code": "DOL", "description": "Dólar Estadounidense", "valid_from": "2009-04-03", "valid_to": null}}, {"model": "afip.currencytype", "fields": {"code": "002", "description": "Dólar Libre EEUU", "valid_from": "2009-04-16", "valid_to": null}}, {"model": "afip.currencytype", "fields": {"code": "010", "description": "Pesos Mejicanos", "valid_from": "2009-04-03", "valid_to": null}}, {"model": "afip.currencytype", "fields": {"code": "011", "description": "Pesos Uruguayos", "valid_from": "2009-04-03", "valid_to": null}}, {"model": "afip.currencytype", "fields": {"code": "014", "description": "Coronas Danesas", "valid_from": "2009-04-03", "valid_to": null}}, {"model": "afip.currencytype", "fields": {"code": "015", "description": "Coronas Noruegas", "valid_from": "2009-04-03", "valid_to": null}}, {"model": "afip.currencytype", "fields": {"code": "016", "description": "Coronas Suecas", "valid_from": "2009-04-03", "valid_to": null}}, {"model": "afip.currencytype", "fields": {"code": "018", "description": "Dólar Canadiense", "valid_from": "2009-04-03", "valid_to": null}}, {"model": "afip.currencytype", "fields": {"code": "019", "description": "Yens", "valid_from": "2009-04-03", "valid_to": null}}, {"model": "afip.currencytype", "fields": {"code": "021", "description": "Libra Esterlina", "valid_from": "2009-04-03", "valid_to": null}}, {"model": "afip.currencytype", "fields": {"code": "023", "description": "Bolívar Venezolano", "valid_from": "2009-04-03", "valid_to": null}}, {"model": "afip.currencytype", "fields": {"code": "024", "description": "Corona Checa", "valid_from": "2009-04-03", "valid_to": null}}, {"model": "afip.currencytype", "fields": {"code": "025", "description": "Dinar Serbio", "valid_from": "2009-04-03", "valid_to": null}}, {"model": "afip.currencytype", "fields": {"code": "026", "description": "Dólar Australiano", "valid_from": "2009-04-03", "valid_to": null}}, {"model": "afip.currencytype", "fields": {"code": "028", "description": "Florín (Antillas Holandesas)", "valid_from": "2009-04-03", "valid_to": null}}, {"model": "afip.currencytype", "fields": {"code": "029", "description": "Güaraní", "valid_from": "2009-04-03", "valid_to": null}}, {"model": "afip.currencytype", "fields": {"code": "031", "description": "Peso Boliviano", "valid_from": "2009-04-03", "valid_to": null}}, {"model": "afip.currencytype", "fields": {"code": "032", "description": "Peso Colombiano", "valid_from": "2009-04-03", "valid_to": null}}, {"model": "afip.currencytype", "fields": {"code": "033", "description": "Peso Chileno", "valid_from": "2009-04-03", "valid_to": null}}, {"model": "afip.currencytype", "fields": {"code": "034", "description": "Rand Sudafricano", "valid_from": "2009-04-03", "valid_to": null}}, {"model": "afip.currencytype", "fields": {"code": "051", "description": "Dólar de Hong Kong", "valid_from": "2009-04-03", "valid_to": null}}, {"model": "afip.currencytype", "fields": {"code": "052", "description": "Dólar de Singapur", "valid_from": "2009-04-03", "valid_to": null}}, {"model": "afip.currencytype", "fields": {"code": "053", "description": "Dólar de Jamaica", "valid_from": "2009-04-03", "valid_to": null}}, {"model": "afip.currencytype", "fields": {"code": "054", "description": "Dólar de Taiwan", "valid_from": "2009-04-03", "valid_to": null}}, {"model": "afip.currencytype", "fields": {"code": "055", "description": "Quetzal Guatemalteco", "valid_from": "2009-04-03", "valid_to": null}}, {"model": "afip.currencytype", "fields": {"code": "056", "description": "Forint (Hungría)", "valid_from": "2009-04-03", "valid_to": null}}, {"model": "afip.currencytype", "fields": {"code": "057", "description": "Baht (Tailandia)", "valid_from": "2009-04-03", "valid_to": null}}, {"model": "afip.currencytype", "fields": {"code": "059", "description": "Dinar Kuwaiti", "valid_from": "2009-04-03", "valid_to": null}}, {"model": "afip.currencytype", "fields": {"code": "012", "description": "Real", "valid_from": "2009-04-03", "valid_to": null}}, {"model": "afip.currencytype", "fields": {"code": "030", "description": "Shekel (Israel)", "valid_from": "2009-04-03", "valid_to": null}}, {"model": "afip.currencytype", "fields": {"code": "035", "description": "Nuevo Sol Peruano", "valid_from": "2009-04-03", "valid_to": null}}, {"model": "afip.currencytype", "fields": {"code": "060", "description": "Euro", "valid_from": "2009-04-03", "valid_to": null}}, {"model": "afip.currencytype", "fields": {"code": "040", "description": "Leu Rumano", "valid_from": "2009-04-15", "valid_to": null}}, {"model": "afip.currencytype", "fields": {"code": "042", "description": "Peso Dominicano", "valid_from": "2009-04-15", "valid_to": null}}, {"model": "afip.currencytype", "fields": {"code": "043", "description": "Balboas Panameñas", "valid_from": "2009-04-15", "valid_to": null}}, {"model": "afip.currencytype", "fields": {"code": "044", "description": "Córdoba Nicaragüense", "valid_from": "2009-04-15", "valid_to": null}}, {"model": "afip.currencytype", "fields": {"code": "045", "description": "Dirham Marroquí", "valid_from": "2009-04-15", "valid_to": null}}, {"model": "afip.currencytype", "fields": {"code": "046", "description": "Libra Egipcia", "valid_from": "2009-04-15", "valid_to": null}}, {"model": "afip.currencytype", "fields": {"code": "047", "description": "Riyal Saudita", "valid_from": "2009-04-15", "valid_to": null}}, {"model": "afip.currencytype", "fields": {"code": "061", "description": "Zloty Polaco", "valid_from": "2009-04-15", "valid_to": null}}, {"model": "afip.currencytype", "fields": {"code": "062", "description": "Rupia Hindú", "valid_from": "2009-04-15", "valid_to": null}}, {"model": "afip.currencytype", "fields": {"code": "063", "description": "Lempira Hondureña", "valid_from": "2009-04-15", "valid_to": null}}, {"model": "afip.currencytype", "fields": {"code": "064", "description": "Yuan (Rep. Pop. China)", "valid_from": "2009-04-15", "valid_to": null}}, {"model": "afip.currencytype", "fields": {"code": "009", "description": "Franco Suizo", "valid_from": "2009-11-10", "valid_to": null}}, {"model": "afip.currencytype", "fields": {"code": "041", "description": "Derechos Especiales de Giro", "valid_from": "2010-01-25", "valid_to": null}}, {"model": "afip.currencytype", "fields": {"code": "049", "description": "Gramos de Oro Fino", "valid_from": "2010-01-25", "valid_to": null}}, {"model": "afip.currencytype", "fields": {"code": "RUB", "description": "Rublo (Rusia)", "valid_from": "2025-01-15", "valid_to": null}}, {"model": "afip.currencytype", "fields": {"code": "NZD", "description": "Dólar Neozelandes", "valid_from": "2025-01-15", "valid_to": null}}]