Refactor SupportStatus into its own module

This will allow a properties to also use SupportStatus

Change-Id: I66783eaefcb7c773120c0f1e5cb7eeacbd483cf7
Add support_status attribute to properties schema

The fix for some bugs will require the deprecating of some existing
properties. This attribute will be used by the documentation generation
to indicate the support status of a given property, which will generally
be SUPPORTED or DEPRECATED.

Change-Id: Idf4b44aa5b8a5a3a1a9fe8f5f62466fdef4c4eae
Merge "Refactor SupportStatus into its own module"
Merge "Add support_status attribute to properties schema"