layers: Add debug marker extension support to PV
layers: Add debug marker extension support to PV

Added parameter validation for Debug Marker functions SetObjectTag,
SetObjectName, Begin, and Insert.

Change-Id: I4e95b350a822fe296cbd750ea228a7d98e29241a

KhronosGroup/Vulkan-Tools,KhronosGroup/Vulkan-Tools,KhronosGroup/Vulkan-Tools,KhronosGroup/Vulkan-Tools