How to read properties from files placed under standalone custom folder in EAP7?

Issue

• Since the modules folder is handled by external vendor it is time consuming to promote our changes so we are looking to have external to modules so that our integration team can control the config files.

• we are looking to place/ refer to the files outside Modules for example : the same level as Deployments folder which is under Standalone - like below :

Windows : 
C:\ABC\jboss-eap-7.2.9\standalone\ABCConfig (where ABCConfig is our custom folder which holds the properties file etc)