refactor: Introduced base class FeastError for all Feast exceptions (#4465)

introduced base class FeastError for all Feast exceptions, with initial methods to map the grpc and HTTP status code

Signed-off-by: Daniele Martinoli <dmartino@redhat.com>

Author: dmartinol

sdk/python/feast/cli_utils.py

@@ -279,7 +279,7 @@ def handler_list_all_permissions_roles_verbose(
         for o in objects:
             permitted_actions = ALL_ACTIONS.copy()
             for action in ALL_ACTIONS:
-                # Following code is derived from enforcer.enforce_policy but has a different return type and does not raise PermissionError
+                # Following code is derived from enforcer.enforce_policy but has a different return type and does not raise FeastPermissionError
                 matching_permissions = [
                     p
                     for p in permissions