test: add more convenience macros and wrap VAStatus
test: add more convenience macros and wrap VAStatus

Add some more convenience test macros and wrap the
VAStatus in a class so that it can be streamed by its
name instead of its value by the gtest framework.

Signed-off-by: U. Artie Eoff <32aece0d55055227b44d04b7d0051cf3d04ee871@intel.com>
Reviewed-by: Sean V Kelley <2e220d3765e3e059981b3c8d241463f952b3ee5f@posteo.de>

01org/iotg-lin-gfx-va-driver,01org/iotg-lin-gfx-va-driver,01org/iotg-lin-gfx-va-driver,01org/iotg-lin-gfx-va-driver,01org/iotg-lin-gfx-va-driver