GRN2-176: Create a role editor that allows admins to specify what permissions each role has (#709)

* Add roles editor

* Add colour selection ability to roles

* Add ability to assign roles to users in the UI

* Remove rolify and replace it with our own custom roles implemenation

* - Fix all existing roles functionality
- Fix super admins

* Fix bugs with new customers not have default roles

* Add can't create room setting

* Code improvements

* Fix migration

* Add tests for new methods

* Translate reserved role names

* Pull roles from saml/ldap

* Fix rspec

* Fix scrutinizer issues

* Fix email promoted/demoted tests

* Apply comments

* Redirect directly to the main room

* Add comments

spec/helpers/application_helper_spec.rb

@@ -85,4 +85,14 @@ describe ApplicationHelper do
       expect(helper.allow_greenlight_accounts?).to eql(false)
     end
   end
+
+  describe "role_clour" do
+    it "should use default if the user doens't have a role" do
+      expect(helper.role_colour(Role.create(name: "test"))).to eq(Rails.configuration.primary_color_default)
+    end
+
+    it "should use role colour if provided" do
+      expect(helper.role_colour(Role.create(name: "test", colour: "#1234"))).to eq("#1234")
+    end
+  end
 end