Description:
Generates admin authorizations file with default crud to false.
Customize methods to change the authorizations

Example:
bin/rails generate basic_admin_authorization Thing

    This will create:
        app/admin/authorizations/thing_authorization.rb

You can also pass an option admin_type that will the default code in all the basic CRUD methods

Example:
bin/rails generate basic_admin_authorization Thing --admin_type 'true'

    This will create:
        app/admin/authorizations/thing_authorization.rb
