Changed chunk-name-format to switch between three different naming formats.  Still needs some work.
Merge branch 'soar-9.4' of github.com:SoarGroup/soar into soar-9.4
Fixes to eliminate clang compiler warnings for missing cases in switches.
- Added scn parameter to remove_node_filter to fix possible bug with uninitialized scn member variable).  Was giving warning.  Not sure if scene variable is currently used.
- Fix to eliminate clang compiler warning for missing cases in switch
Removed platform-dependent timing code that wasn't being used.  Was previously fixed but came back in during a manual merge several commits ago.
Finished new chunk name format code. Rule based format is now default.  Now includes abbreviated form of impasse type and whether it's a chunk based on another chunk.
Merge branch 'soar-9.4' of git@github.com:SoarGroup/soar.git into local soar-9.4

Conflicts:
	Core/SoarKernel/src/recmem.cpp