Add Google Signin (#7969)

* Start adding google login

* fix local js issue

* implement syntax suggestions

* fix delete social tests

* Add service for authentication alerts

* fix social login tests

* make suggested google sign in changes

* fix accidentally deleted code

* refactor social network sign in

* fix incorrect find

* implement suggested google sign in changes

* fix(tests): Inject fake Auth module for auth controller

* fix(test): prevent social service from causing page reload

* fix loading user info

* Use lodash's implimentation of find for IE compatibility

* chore: increase test coverage around deletion route

* chore: clean up social auth test

* chore: Fix social login tests

* remove profile from login scope

* fix(api): Allow social accounts to deregister as user has auth backup

* temporarily disable google login button

config.json.example

@@ -7,6 +7,8 @@
     "FACEBOOK_ANALYTICS":"1234567890123456",
     "FACEBOOK_KEY":"123456789012345",
     "FACEBOOK_SECRET":"aaaabbbbccccddddeeeeffff00001111",
+    "GOOGLE_CLIENT_ID":"123456789012345",
+    "GOOGLE_CLIENT_SECRET":"aaaabbbbccccddddeeeeffff00001111",
     "NODE_DB_URI":"mongodb://localhost/habitrpg",
     "TEST_DB_URI":"mongodb://localhost/habitrpg_test",
     "NODE_ENV":"development",