Serials: a wizard for the pattern code field of the caption_and_pattern object

Serials: a wizard for the pattern code field of the caption_and_pattern object

This field holds the same data you'd find in the contents of an 853, 854, or
855 tag.  This wizard aims to make it a little easier for mere mortals to
compose this information, since the correctness of this field is fairly
central to reasonably accurate serials issuance prediction.

Find a button to launch this wizard from the Caption/Pattern interface of the
Serial Control View.

Big thanks to Galen Charlton, Dan Wells and Mike Rylander for all the help in
getting this started and understanding the MARC.

The wizard does still have a way to go before it's everything it can be. It
still needs (in no particular order):
    - scrollbars on that dialog window
    - support for subfield $y and probably $z, possibly others
    - i18n fixes, accessibility improvements
    - more control over subfield $8
    - more input validation and user guidance; sane defaults for some fields?
    - reconsideration of the order of the parts of the wizard
    - finding out if it makes sense to allow $m without $j,$k and $l present

git-svn-id: svn://svn.open-ils.org/ILS/trunk@17472 dcc99617-32d9-48b4-a31d-7c20da2025e4