Improve testing time
The tests run in serial now could instead use CTest's RESOURCE_LOCK property to ensure they don't run against each other (e.g., pv.Calculator and pvcs.Calculator). They could also be changed to not use the context menus which (probably) make them serial in the first place. The Catalyst tests could also be simplified.
Cc: @utkarsh.ayachit @cory-quammen @shawn.waldon