GRN-80: Allow local accounts on multitenant (#428)

* Changed the way the omniauth providers are declared

* Allow local authentication for multitenant mode based on customer settings

* Cleanead up code mandated by rubocop

* Completed implementation for signin and added the one for signup

* Fixed issue with rubocop

* Renamed customer_name to lb_user

* Renamed lb_user -> user_domain, fixed issue with signup controller, email verification WAS NOT implemented

* Completed implementation of email_verification

* Fixed rubocop issue

* Final update

* Fix for test with loadbalancer

* Make sure loadbalancer mockup is only used when env defined

* Fix for test on rooms_controller

* Fixed most of the test failing on multitenant env

* Fixed issue detected by rubocop

* Fixed issue with activation tockens not working on resend

* Fixed new issue found by rubocop

* Updated travis script

* Harcoded credentials for mockup

* Updated expectation on start_session

* Fixed issue with duplication of home room

* Updated script for rubocop

* Restored Gemfile

app/views/shared/components/_resend_button.html.erb

@@ -14,5 +14,5 @@
 %>
 
 <div class="btn-list text-right pt-8">
-    <%= button_to t("verify.resend"), resend_email_path, params: { email_verified: false }, class: "btn btn-primary btn-space" %>
+    <%= button_to t("verify.resend"), resend_email_path, params: { email: params['email'], email_verified: false }, class: "btn btn-primary btn-space" %>
 </div>