layers: MR178, Various fixes to inFlightCmdBuffers tracking in draw_state

layers: MR178, Various fixes to inFlightCmdBuffers tracking in draw_state

For clarity change the name of device-level set to "globalInFlightCmdBuffers".
Correctly handle validation errors and inFlightCmdBuffer clean-up when waiting for device idle.
No need to do another queue node look-up when inserting inFlightCmdBuffers at
trackCommandBuffers time, just use data from earlier look-up.
Correctly set queue when creating QUEUE_NODE.
Add locking around resetCB.
Refactor large set of checks at vkQueueSubmit time into validateCommandBufferState() function.

Conflicts:
	layers/draw_state.cpp