Add more exceptions

Author: pipozzz

cryptopay/exceptions.py

@@ -6,3 +6,27 @@ class UnauthorizedApiException(Exception):
 
 class ApiKeyMissingException(Exception):
     pass
+
+
+class RequestFailedException(Exception):
+    pass
+
+
+class BadRequestException(Exception):
+    pass
+
+
+class BadRequestException(Exception):
+    pass
+
+
+class TooManyRequestsException(Exception):
+    pass
+
+
+class ServerErrorException(Exception):
+    pass
+
+
+class ConflictException(Exception):
+    pass