move token_authentication_concern under reporting_api namespace

Author: Alistair Davidson

app/controllers/concerns/token_authentication_concern.rb renamed to app/controllers/concerns/reporting_api/token_authentication_concern.rb

@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-module TokenAuthenticationConcern
+module ReportingAPI::TokenAuthenticationConcern
   extend ActiveSupport::Concern
 
   included do

spec/controllers/concerns/token_authentication_concern_spec.rb renamed to spec/controllers/concerns/reporting_api/token_authentication_concern_spec.rb

@@ -1,12 +1,12 @@
 # frozen_string_literal: true
 
-describe TokenAuthenticationConcern do
+describe ReportingAPI::TokenAuthenticationConcern do
   let(:user) { @user = build(:user) }
   let(:mock_request) { instance_double(request.class, headers: {}) }
   let(:an_object_which_includes_the_concern) do
     Class
       .new do # rubocop:disable Style/BlockDelimiters
-        include TokenAuthenticationConcern
+        include ReportingAPI::TokenAuthenticationConcern
         attr_accessor :request, :session
 
         def authenticate_user!