layers: Merge of cmd buffer maps in core_validation

This is the first step in killing cbMap from mem_tracker and merging
all cmd buffer tracking into commandBufferMap.
This removes all cbMap references, merges some data between the two maps
as appropriate, and replicates some of the mem_tracker data into the
GLOBAL_CB_NODE struct.
There is still some work to be done here in order to remove some of
the replicated data and improve some algorithms that use the
commandBufferMap to avoid duplicate efforts.
2 files changed