[cmake] Put RunPythonTests in Bindings folder.
[cmake] Put RunPythonTests in Bindings folder.

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