Live query CLP (#4387)

* Auth module refactoring in order to be reusable

* Ensure cache controller is properly forwarded from helpers

* Nits

* Adds support for static validation

* Adds support for CLP in Live query (no support for roles yet)

* Adds e2e test to validate liveQuery hooks is properly called

* Adds tests over LiveQueryController to ensure data is correctly transmitted

* nits

* Fixes for flow types

* Removes usage of Parse.Promise

* Use the Auth module for authentication and caches

* Cleaner implementation of getting auth

* Adds authCache that stores auth promises

* Proper testing of the caching

* nits

src/Routers/UsersRouter.js

@@ -361,7 +361,7 @@ export class UsersRouter extends ClassesRouter {
           // be used to enumerate valid emails
           return Promise.resolve({
             response: {},
-          })
+          });
         } else {
           throw err;
         }