Add arcconfig
Add arcconfig

Summary: Add arc config. arcanist is the CLI of phabricator

Test Plan: It works!

Reviewers: tobias

Reviewed By: tobias

Subscribers: pmaanen

Differential Revision: https://dev.openmha.org/D1

HoerTech-gGmbH/openMHA,HoerTech-gGmbH/openMHA,HoerTech-gGmbH/openMHA,HoerTech-gGmbH/openMHA,HoerTech-gGmbH/openMHA,HoerTech-gGmbH/openMHA,HoerTech-gGmbH/openMHA,HoerTech-gGmbH/openMHA