Add Zagreb stock exchange (#134)

Author: w3stling

README.md

@@ -116,6 +116,7 @@ http://127.0.0.1:8000/api/v1/openapi.json
 | Poland Stock Exchange           | XWAR     | 🇵🇱 Poland         | https://www.gpw.pl                                            |
 | Prague Stock Exchange           | XPRA     | 🇨🇿 Czech Republic | https://www.pse.cz/en                                         |
 | Bucharest Stock Exchange        | XBSE     | 🇷🇴 Romania        | https://www.bvb.ro                                            |
+| Zagreb Stock Exchange           | XZAG     | 🇭🇷 Croatia        | https://www.zse.hr/en                                         |
 | Budapest Stock Exchange         | XBUD     | 🇭🇺 Hungary        | https://bse.hu                                                |
 | Moscow Exchange                 | XMOS     | 🇷🇺 Russia         | https://www.moex.com/en                                       |
 | Astana International Exchange   | AIXK     | 🇰🇿 Kazakhstan     | https://www.aix.kz                                            |

tests/test_api.py

@@ -9,7 +9,7 @@ def test_api_version(client):
 def test_markets_all(client):
     response = client.get("/api/v1/markets")
     assert response.status_code == 200
-    assert len(response.json()) == 62
+    assert len(response.json()) == 63
 
 
 def test_markets_one_mic(client):
@@ -33,7 +33,7 @@ def test_status_all(client):
     response = client.get("/api/v1/markets/status")
     assert response.status_code == 200
     print(response.json())
-    assert len(response.json()) == 62
+    assert len(response.json()) == 63
 
 
 def test_status_one_mic(client):
@@ -56,7 +56,7 @@ def test_status_bad_mic(client):
 def test_hours_all(client):
     response = client.get("/api/v1/markets/hours?start=2024-07-03&end=2024-07-03")
     assert response.status_code == 200
-    assert len(response.json()) == 62
+    assert len(response.json()) == 63
 
 
 def test_hours_one_mic(client):

trading_calendar/exchanges.py

@@ -664,7 +664,23 @@ def load(self):
                 'currency_code' : 'RON',
                 'currency_symbol' : 'lei',
                 'dst_transitions' : 'true',
-            },            
+            },
+            'XZAG' : {
+                'mic' : 'XZAG',
+                'name' : 'Zagreb Stock Exchange',
+                'acronym' : None,
+                'lei' : '7478000050A040C0D041',
+                'url' : 'https://www.zse.hr/en',
+                'city' : 'Zagreb',
+                'country' : 'Croatia',
+                'country_code' : 'HR',
+                'region' : 'Europe',
+                'flag' : '🇭🇷',
+                'currency_name' : "Euro",
+                'currency_code' : 'EUR',
+                'currency_symbol' : '€',
+                'dst_transitions' : 'true',
+            },
             'ASEX' : {
                 'mic' : 'ASEX',
                 'name' : 'Athens Stock Exchange',