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/user.rb

@@ -1,3 +1,48 @@
+# == Schema Information
+#
+# Table name: users
+#
+#  id                     :integer          not null, primary key
+#  confirmation_sent_at   :datetime
+#  confirmation_token     :string
+#  confirmed_at           :datetime
+#  current_sign_in_at     :datetime
+#  current_sign_in_ip     :string
+#  email                  :string
+#  encrypted_password     :string           default(""), not null
+#  image                  :string
+#  last_sign_in_at        :datetime
+#  last_sign_in_ip        :string
+#  name                   :string           not null
+#  nickname               :string
+#  provider               :string           default("email"), not null
+#  pubsub_token           :string
+#  remember_created_at    :datetime
+#  reset_password_sent_at :datetime
+#  reset_password_token   :string
+#  role                   :integer          default("agent")
+#  sign_in_count          :integer          default(0), not null
+#  tokens                 :json
+#  uid                    :string           default(""), not null
+#  unconfirmed_email      :string
+#  created_at             :datetime         not null
+#  updated_at             :datetime         not null
+#  account_id             :integer          not null
+#  inviter_id             :bigint
+#
+# Indexes
+#
+#  index_users_on_email                 (email)
+#  index_users_on_inviter_id            (inviter_id)
+#  index_users_on_pubsub_token          (pubsub_token) UNIQUE
+#  index_users_on_reset_password_token  (reset_password_token) UNIQUE
+#  index_users_on_uid_and_provider      (uid,provider) UNIQUE
+#
+# Foreign Keys
+#
+#  fk_rails_...  (inviter_id => users.id) ON DELETE => nullify
+#
+
 class User < ApplicationRecord
   # Include default devise modules.
   include DeviseTokenAuth::Concerns::User