Bug 17318: Allow chosing fixed normalization routines

Bug 17318: Allow chosing fixed normalization routines

This patch changes the matching-rules.pl page, so it allows the user to choose
from the different hardcoded normalization routines. It is done using TT blocks
and the routine descriptions are translatable.

To test:
- Create some matching rule
- Have free text values on the 'Normalization rule' field
- Apply the patches
- Create a new routine
=> SUCCESS: You can now only choose between fixed option
- Save the rule
- Open it for editing
=> SUCCESS: Chosen rules are preserved
- Edit the original free-text including rule
=> SUCCESS: Rules fall back to 'None'
- Sign off :-D

TODO: A followup will add a warning about the current value and the fact that
      saving the matching rule will overwrite those, with 'none'.

Sponsored-by: FIT
Signed-off-by: Mark Tompsett <mtompset@hotmail.com>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>