Undo change of removing OpenSimContext since it includes PropertyHelper and a few other useful classes for now.
Undo change of removing OpenSimContext since it includes PropertyHelper and a few other useful classes for now.

opensim-org/opensim-core,opensim-org/opensim-core,opensim-org/opensim-core,opensim-org/opensim-core,opensim-org/opensim-core,opensim-org/opensim-core,opensim-org/opensim-core