Description:

Generates a sample granite action.

Example:

`rails generate granite user/create`

Will create:
  apq/actions/ba/user/business_action.rb
  apq/actions/ba/user/create.rb
  spec/apq/actions/ba/user/create_spec.rb

`rails generate granite user/create -C`
`rails generate granite user/create --collection`

Will create:
  apq/actions/ba/user/create.rb
  spec/apq/actions/ba/user/create_spec.rb

`rails generate granite user/create simple`

Will create:
  apq/actions/ba/user/create/simple/
  apq/actions/ba/user/business_action.rb
  apq/actions/ba/user/create.rb
  spec/apq/actions/ba/user/create_spec.rb