Add new Rails/ActiveRecordCallbacksOrder cop

[fatkodima]

https://rails.rubystyle.guide/#callbacks-order

I always wanted to have a similar cop, and here it is 😄

[koic]

The current implementation produces the following error.

class User < ApplicationRecord
  def do_something
  end
end

     NoMethodError:
       undefined method `send_type?' for :do_something:Symbol
     # ./lib/rubocop/cop/rails/active_record_callbacks_order.rb:97:in `callback?'
     # ./lib/rubocop/cop/rails/active_record_callbacks_order.rb:90:in `block in defined_callbacks'
     # ./lib/rubocop/cop/rails/active_record_callbacks_order.rb:90:in `select'
     # ./lib/rubocop/cop/rails/active_record_callbacks_order.rb:90:in `defined_callbacks'
     # ./lib/rubocop/cop/rails/active_record_callbacks_order.rb:55:in `on_class'

[fatkodima]

Updated. Added a test case for failing example.

[koic]

Thanks!