Rework tools, products, addons, packages and manifests as unified roomservice
Effetcs:
  * All product related stuff lives in vendor/pa/products
     .manifest - Merged .adds and .removes manifests
     .mk       - Device definition (no change)
     _extra.mk - Non vital device specific extra make file
                 For use by device maintainers

  * Packages related stuff (currently only cm)
     .manifest - Merged .adds and .removes manifests
     .mk       - Package definition (no change)

  * config/pa_roomservice.{mk,py}
    Merged all projects treatment done previousely by vendor/tolls/*.py

  * build.sh   - Main build script
    Used the same but now do not treat manifests.
    Manifests done my pa_roomservice automatically

Change-Id: I4ca58d3ed0e807936f6a4ef03f333520ed83970c