HscMapper: add validity range for bias, dark

Couldn't have more than one bias or dark in the registry
("RintimeError: No unique lookup for bias from ['calibDate', 'calibVersion'] from {'filter': 'NONE', 'ccd': 108, 'visit': 1136}: 2 matches").
Adding validty ranges fixes this.
config: enable CModel in processCcd, if available

They are not yet enabled in the calibration stage, though
they will need to be later in order to get the aperture
correction.
config: disable CModel in processCcd final measurement

Enabling this was supposed to be done only for debugging.