Tizen:Common: Add feature flags : gstreamer and scim

Tizen:Common: Add feature flags : gstreamer and scim

To be used for packaging's spec files,

Merging them all in at the obs project level
will help to simply packaging.
Spec files just need to rely on actual project's features,
and should avoid to test profile and its version.

In a longer term when all needed features are listed here in project,
%{profile} variable should not appear in specfiles for testing features.

Change-Id: I8c1d8ddb383757a935692f6c02481516ed1f8841
Bug-Tizen: TC-2147/related
Signed-off-by: Philippe Coval <philippe.coval@open.eurogiciel.org>