Added EmptyController in ruby

• Added:
- EmptyController in ruby

app/controllers/empty_controller.rb

@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+
+class EmptyController < ActionController::Base
+
+  protected
+
+  def current_user
+    nil
+  end
+
+  def current_account
+    nil
+  end
+
+  def current_session
+    nil
+  end
+
+end