This integrates the OpenSim refactoring to make physics, etc into modules.
AVN physics hasn't been moved to new location.
Does not compile yet.
Merge branch 'osmaster' into mbworknew1
This matches Linden Lab behaviour and what was already possible via shift-copy.
Transfer would not apply here as the owner and copier are the same.
This is the only functional change, all other current take copy logic remains the same.
Adds regression tests around relevant take copy cases.