Bug 3534 - Patron quick add form

Bug 3534 - Patron quick add form

This patch adds a new system preference:
    PatronQuickAddFields

When either this pref or BorrowerMandatoryField is populated this will add a new dropdown to the bew patron toolbar.
When a category is chosen from this dropdown the fields in PatronQuickAddFields and BorrowerMandatoryField will be displayed.
There will be a button allowing a user to switch from the quickadd to the full form and fields will be copied between the forms when toggling.

The Quick add will only be displayed on add of a new patron, future edits should display the full form.

Test plan:
 1 - Apply patch
 2 - run updatedatabase.pl
 3 - Add a new patron and ensure nothing has changed
 4 - Populate either PatronQuickAddFields or BorrowerMandatory fields
 and note the new button for adding a patron
 5 - Click the Quick add and choose a type
 6 - Only required or quick add fields should be displayed
 7 - Verify toggling forms copies information
 8 - Ensure you cannot save patron without filling required fields
 (quick add fields should be optional)
 9 - Ensure you can save patron with fields filled out
10 - Ensure that a duplicate patron brings up the duplicate/add new
buttons with full form displayed
11 - Verify that subsequent edits use only full form
12 - Verify that data on form submitted is the data saved to patron
13 - Test with various values in both MandatoryBorrowerFields and PatronQuickAddFields

Sponsored by: VOKAL (Vermont Organization of Koha Automated Libraries)

Followed test plan, works as expected.
Re-tested together with followup, works as expected (2016-06-02)
Signed-off-by: Marc Véron <veron@veron.ch>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>