feat: add admin bindings

docs/source/api/api.rst

@@ -1,5 +1,5 @@
 API
 ======
 
-.. autoclass:: gotrue._async.api.AsyncGoTrueAPI
+.. autoclass:: gotrue._async.gotrue_admin_api.AsycnGoTrueAdminAPI
     :inherited-members:

gotrue/__init__.py

@@ -2,13 +2,13 @@
 
 __version__ = "0.5.4"
 
-from ._async.api import AsyncGoTrueAPI
 from ._async.client import AsyncGoTrueClient
+from ._async.gotrue_admin_api import AsyncGoTrueAdminAPI
 from ._async.storage import AsyncMemoryStorage, AsyncSupportedStorage
-from ._sync.api import SyncGoTrueAPI
 from ._sync.client import SyncGoTrueClient
+from ._sync.gotrue_admin_api import SyncGoTrueAdminAPI
 from ._sync.storage import SyncMemoryStorage, SyncSupportedStorage
 from .types import *
 
 Client = SyncGoTrueClient
-GoTrueAPI = SyncGoTrueAPI
+GoTrueAPI = SyncGoTrueAdminAPI