Cleanup unit_tests/CMakeLists.txt
Move shared sources to libult
define linux test projects in linux subdirectory
Change-Id: I0da18c79e6581412a04ddfb3795750db862ad95c
Add macro to add all subdirectories
Add macro to create project source tree based on target sources
Small cleanup runtime/CMakeLists.txt
Change-Id: I9b99145c544f648c4c3fe7421752d0c5d9504edf