[refactor] split snapshot tests into different formats

Author: cscheid

crates/quarto-markdown-pandoc/tests/snapshots/json/001.qmd

@@ -0,0 +1 @@
+This is a **bold** test.

crates/quarto-markdown-pandoc/tests/snapshots/json/001.qmd.snapshot

@@ -0,0 +1 @@
+{"blocks":[{"c":[{"c":"This","l":{"end":{"column":4,"offset":4,"row":0},"filename":null,"start":{"column":0,"offset":0,"row":0}},"t":"Str"},{"l":{"end":{"column":5,"offset":5,"row":0},"filename":null,"start":{"column":4,"offset":4,"row":0}},"t":"Space"},{"c":"is","l":{"end":{"column":7,"offset":7,"row":0},"filename":null,"start":{"column":5,"offset":5,"row":0}},"t":"Str"},{"l":{"end":{"column":8,"offset":8,"row":0},"filename":null,"start":{"column":7,"offset":7,"row":0}},"t":"Space"},{"c":"a","l":{"end":{"column":9,"offset":9,"row":0},"filename":null,"start":{"column":8,"offset":8,"row":0}},"t":"Str"},{"l":{"end":{"column":10,"offset":10,"row":0},"filename":null,"start":{"column":9,"offset":9,"row":0}},"t":"Space"},{"c":[{"c":"bold","l":{"end":{"column":16,"offset":16,"row":0},"filename":null,"start":{"column":12,"offset":12,"row":0}},"t":"Str"}],"l":{"end":{"column":18,"offset":18,"row":0},"filename":null,"start":{"column":10,"offset":10,"row":0}},"t":"Strong"},{"l":{"end":{"column":19,"offset":19,"row":0},"filename":null,"start":{"column":18,"offset":18,"row":0}},"t":"Space"},{"c":"test.","l":{"end":{"column":24,"offset":24,"row":0},"filename":null,"start":{"column":19,"offset":19,"row":0}},"t":"Str"}],"l":{"end":{"column":24,"offset":24,"row":0},"filename":null,"start":{"column":0,"offset":0,"row":0}},"t":"Para"}],"meta":{},"pandoc-api-version":[1,23,1]}