Description:
    Generate coffee files for tao page.

Example:
    `rails generate tao:coffee employee new`

    Create coffee file:
        app/assets/javascripts/employees/new.coffee


    `rails generate tao:coffee employee index --variants=default phone`

    Create coffee files:
        app/assets/javascripts/default/employees/index.coffee
        app/assets/javascripts/phone/employees/index.coffee