DASCTEST-162 Update the CQuery history in the workspace
Do this for both "setup" (if a category specified) and "materialize"
dawn.py "unlink" should delete tp/ as well as .metadata/
dawn.py remove "unlink", and "recreate" with similar action
dawn.py Remove maketp actiom, which was never used, and was out of date.
The correct way to initialize tp/ is to use "setup" (or "materialize").
Buckminster: add org.dawnsci.isosurface* to RMap and Cqueries
dawn.py Fix up handling of existing workspace