Add capabilities map

Add capabilities map

This file holds metadata about the capabilities of the tripleo-heat-templates
repository for deployment using puppet. It groups configuration by topic,
describes possible combinations of environments and resource capabilities

It's main purpose is to provide relevant information to the user to guide
him through the deployment options. tripleo-common can use this
information to streamline deployment process on environment and resource
registry level. Heat templates themself aren't currently able to provide
this information.

Change-Id: I82a7ba6defc13ac2efae73a6caa36bfee69dd94b