Bug 17428: [REST] best practice followup

Bug 17428: [REST] best practice followup

This followup alters a few area's to be aligned more closely with
RESTfull best practices:

* PUT should always be full objects, and not partial updates (use PATCH
  for partials)
* Validate query parameters instead of blindly passing them to the model
  * Functional Change: Convert filter params from 'equality' to 'starts with'
    matching
* Update tests to check for swagger validation errors instead of koha exceptions
* Mark 'id' as readOnly so swagger may prevent, via validation, id
  changes.

Signed-off-by: Jonathan Druart <jonathan.druart@biblibre.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>