Added devstack config yml file to app repo (#2680)
Added devstack config yml file to app repo (#2680)

* Added devstack config yml file to app repo

* Added config yml file to app repo

eduNEXT/edunext-ecommerce,edx/ecommerce,eduNEXT/edunext-ecommerce,eduNEXT/edunext-ecommerce,edx/ecommerce,eduNEXT/edunext-ecommerce,edx/ecommerce,edx/ecommerce