Test trivial gl_RayFlagsSkipTrianglesEXT and gl_RayFlagsSkipAABBEXT

Test trivial gl_RayFlagsSkipTrianglesEXT and gl_RayFlagsSkipAABBEXT

Test trivial cases for following GLSL flags:
 * gl_RayFlagsSkipTrianglesEXT
 * gl_RayFlagsSkipAABBEXT
as well as pipeline creation flags:
 * VK_PIPELINE_CREATE_RAY_TRACING_SKIP_TRIANGLES_BIT_KHR
 * VK_PIPELINE_CREATE_RAY_TRACING_SKIP_AABBS_BIT_KHR

Tests include both of the flags, that makes them trivial.

Add tests:
 * dEQP-VK.ray_tracing.builtin.incomingrayflagsext.*rayskipboth*
 * dEQP-VK.ray_tracing.builtin.incomingrayflagsext.*pipelineskipboth*

Update and refreshes tests:
 * dEQP-VK.ray_tracing.builtin.incomingrayflagsext.*

Components: Vulkan

VK-GL-CTS issue: 2337, 2199

Change-Id: Ib90519ca8c0875b999b273614df9a02386327b61