oeqa/utils/targetbuild.py: add support for sdk tests
- Create new abstract class BuildProject that provides basic functionality for a project/package building class
* contains abstract method _run() that needs to be implemented by all extending classes.
- The old TargetBuildProject class now extends the abstract BuildProjct class
- Introducing new SDKBuildProject that extends the abstract BuildProjct class
NOTE: Original patch made by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Corneliu Stoicescu <corneliux.stoicescu@intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
