Annotations (#327)

* Add annotate gem to the project
* Annotate models, fixtures, factories and model_specs
* Keep annotations only in Models
* Remove unwanted changes in model specs
* Exclude auto_annotate_models from rubocop

app/models/account.rb

@@ -1,3 +1,13 @@
+# == Schema Information
+#
+# Table name: accounts
+#
+#  id         :integer          not null, primary key
+#  name       :string
+#  created_at :datetime         not null
+#  updated_at :datetime         not null
+#
+
 class Account < ApplicationRecord
   include Events::Types