Bug 23681: Fix QA issues

Bug 23681: Fix QA issues

This patch fixes following QA issues:
- convert intaller files as .yml
- change column name readonly as is_system
- change column name is_system as default_value
- add column can_be_added_manually (testplan for this below)
- move syspref "PatronRestrictionTypes" to "Accounting > Features" tab
- tweak page title
- tweak tests to apply these changes

Also atomicupdate files have been updated. Issues with delete and tests
is fixed with adding additional schema change file.

To test:
1) Add new restriction type and make it manual.
2) Navigate to patron details page.
3) Add new restriction to patron.
=> Only selectable restriction should be the one
you just created.

Also prove t/db_dependent/RestrictionTypes.t.

Sponsored-by: Koha-Suomi Oy
Signed-off-by: Katrin Fischer <katrin.fischer@bsz-bw.de>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>