Add clearer repro for crash
Add test to expose memory corruption in PolyMesh/Geometry
RedZone violation without in pure KL
Revert "RedZone violation without in pure KL"

This reverts commit 88c427e6641bd353787c885f3a1565a855abd024.
Isolating RedZone corruption
Fix repro case
restructured unit test folder.
initial commit of new geometry stack system.
basic caching working
Attribute caching working reasonably well.
change notifications invalidating caches.
replaced report statements with statistics report.
fixed bug in cache invalidation
Introduced the new GeometrySet object that can store shared metadata.
cleaned up GeometrySet metaData and eliminated the 'bind' method on deformers.
Simplified Deformer interface so we basically just have 'GeometryOperator'.
Caching can now be runtime determined.
AlembicGeometryGenerator now compiling. Refactored from a Character to a Generator.
Caching now support changing attributes. (parameter changes on a deformer might change which attributes get modified and need to be cached.)
Alembic Geometry generator working.