This change adds apache templates for Cinder API services.
Also add possibility to switch between the old and new ways
to setup Cinder API.
Related Cinder blueprint:
https://blueprints.launchpad.net/cinder/+spec/non-eventlet-wsgi-app
Change-Id: Icfad40ee6998296727a95613199e5c2d87bd0a45
Depends-On: Ifbab059001d1567b1f7b394c0411a9ca4629f846
Co-Authored-By: Ivan Kolodyazhny <e0ne@e0ne.info>