Rework TomoDetector optic

Rework the TomoDetector optic, to

• Make it ready for Daiquiri
• Structure it the way it is used at beamlines

Actual state

This looks a bit inconsistent. It would be good to rewrite that part of the code.

• self.optic is a string?
• self._optic is an optic
• self.user_optic is ?
• configured_optic?

Also there is a use of connect(optic) but no disconnect(optic), so probably there is problems at some places.

Planed yml config

# Define an optic which is usually linked and will not be changed
# else this can be undefined
optic: $myoptic

# Define a list of optics which can be used
mountable_optics: $list_of_optics

# Optionally allow to describe it this way
mountable_optics:
   - $opt1
   - $opt2
   - $opt3

Planed changes in TomoDetector

This looks a bit inconsistent. It would be good to rewrite that part of the code.

• self.optic is the mounter optic, it can be changed by the user