CA migration of SCT calibration loop transform and tools

This MR aims to migrate the SCT calibration loop transform and related tools to a CA configuration, see ATLSCTDAQ-193. Tagging @csander

A new transform skeleton is introduced in python/SCTCalib_Skeleton.py, as well as a set of dedicated configuration flags in python/SCTCalibFlags.py. The main algorithm covering different calibration tasks is configured in python/SCTCalibAlgConfig.py. Settings are largely taken over from the old transform configuration which has been developed over years. Not all settings might be necessary to be kept, but we would like to avoid redesigning the steering of the tasks too much at this stage.

The current setup runs in CA mode with some test tasks. Full functionality to be checked.