Add constructors for the QuayDeferredPermissionUser so that we can avoid extraneous DB lookups of the user whenever we already have the object

endpoints/common.py

@@ -103,7 +103,7 @@ def param_required(param_name):
 def common_login(db_user):
   if login_user(LoginWrappedDBUser(db_user.uuid, db_user)):
     logger.debug('Successfully signed in as: %s (%s)' % (db_user.username, db_user.uuid))
-    new_identity = QuayDeferredPermissionUser(db_user.uuid, 'user_uuid', {scopes.DIRECT_LOGIN})
+    new_identity = QuayDeferredPermissionUser.for_user(db_user)
     identity_changed.send(app, identity=new_identity)
     session['login_time'] = datetime.datetime.now()
     return True