Add a specific disabled cop file for ruby 2.3 projects
This file is identical to .rubocop-disabled except that it does not contain a reference to RSpec/MultipleMemoizedHelpers cop which is not available for Ruby 2.3 projects
This file is identical to .rubocop-disabled except that it does not contain a reference to RSpec/MultipleMemoizedHelpers cop which is not available for Ruby 2.3 projects