Refactor map file to import role data only

The smallest piece of salt formula is state. In our formulas each
state is an abstraction of 'role' for example:
  * controller (installs api services)
  * client (installs glance resources like images)
Each state have its own API (the format of pillar it accepts). We would
like to keep pillar data unified and in long term automatically
validated. By importing anything non role-specific makes
unification/automatic validation hard to maintain.
This patch refactor map.jinja and glance config file templates to import
only role specific data from map file.

Change-Id: Iee982b5131e817e11391a5210ef61075021d7323
Related-Prod: PROD-16493
10 files changed