tests: Add level/layerCount check testing GH-909
tests: Add level/layerCount check testing GH-909

Add tests to exercise new Valid Usage checks.  See GH-909

Change-Id: I2f031ce64a40968f08d0baa539c38305071b2138

KhronosGroup/Vulkan-LoaderAndValidationLayers,KhronosGroup/Vulkan-LoaderAndValidationLayers,KhronosGroup/Vulkan-LoaderAndValidationLayers,KhronosGroup/Vulkan-LoaderAndValidationLayers