GuestDebugMarkers for NVidia extension.

This commit implements guest debug markers for drivers supporting
VK_NV_device_diagnostic_checkpoints (NVidia and Intel), combined with
GfxApiLogger interfaces. CommandBuffers that caused crashes should now
be stored inside crashdumps, and retrievable by scripts for parsing those.

Bug: b/197548793
Test: run emulator with changes, verify it's not crashing emulator.
	Also run emulator causing hang in one of the guest commandBuffers,
	and verify faulting commandBuffer recorded in crashDump.
Change-Id: I052d16409f6c3530851208944d9a825d6567221b
5 files changed