Bug 29391: Improve output of reservoir search

Bug 29391: Improve output of reservoir search

This patch makes the cataloging reservoir search results a configurable
DataTable. The empty edition and date columns are removed, and an import
data column is added.

To test, apply the patch and go to Cataloging.

- Perform a cataloging search which will return results from the
  reservoir.
- The table of reservoir search results should be a DataTable with
  paging, navigation, filtering, column configuration, etc.
  - Confirm that all DataTable controls work correctly.
- Go to Administration -> Table settings -> Cataloging -> addbooks.
  - Try modifying the default configuration and confirm that the
    settings take effect.

Signed-off-by: Barbara Johnson <barbara.johnson@bedfordtx.gov>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>