Add explicit study records

[karlcz]

The core catalog model allows somewhat open-ended tracking of images and image regions for one subject. To simplify analysis and enable more automation, we want to add a layer where the user can explicitly define data pairings for the before/after analysis.

• Two timepoint image study
  • Exactly one image for timepoint 1
  • Exactly one image for timepoint 2
  • Exactly one nucleic region per image (to use for image alignment)
• Two timepoint synaptic study
  • Linked to a single two timepoint image study
  • Exactly one synaptic region per study image

We need to experiment with some Chaise data-entry features to try to streamline the creation of these study records.

[karlcz]

This is mocked up on synapse-dev to test the data-entry flow.

[karlcz]

This has been user tested and is in production.