Enable building with standalone clang on Windows(R) on Arm(TM).

- Add support in the unit test framework to check for hardware capabilities using the Windows(R) SDK
- Minor changes to CMakeLists.txt and the unit test framework to solve build issues

Signed-off-by: Jens Elofsson <jens.elofsson@arm.com>

Reviewed-by: Anton Bondarenko <anton.bondarenko@arm.com>
Approved-by: Anton Bondarenko <anton.bondarenko@arm.com>
Approved-by: Jakub Sujak <jakub.sujak@arm.com>