Refactor snapshot module creation

Generalize the processing of arch specific properties to reduce
duplication in snapshot module creation and simplify addition of
support for handling multiple os types.

Supporting multiple os types with the current method for building
snapshot modules would require every affected module type to add
support for it. Rather than duplicate multiple os type handling code
across those module types this work generalizes the process cc modules
use for handling arch types as it can be used as a basis for handling
multiple os types. Migrating module types over to this new process
will insulate them from having to handle multiple os types.
OB
SdkMemberType changes:
* BuildSnapshot is deprecated in favour of the new AddPrebuiltModule()
  method.
* Additional methods, CreateVariantPropertiesStruct() and
  FinalizeModule() are added.
* A new interface SdkMemberProperties, is defined that handles
  extracting information from the variant (prior to common value
  optimization) and adding properties to a property set.

The sdk module type uses these new methods and types to delegate the
member type specific processing to the relevant member types while
handling the behavior that is common across all members types, e.g.
extracting common values across multiple architectures. A future change
will leverage this processing to add support for multiple os types.

This change also refactors the cc module processing to use the new
process.

Bug: 150451422
Test: m nothing
Change-Id: If6ab2498407b17f50391d062cd9afc01b5e01af4