Bug 15436: Use semicolon between series name and volume

Bug 15436: Use semicolon between series name and volume

MARC21 dictates that we should be using a ; before $v in 440, 490,
810, 811 and 830.

This patch also introduces some additional changes to unify formatting
between the various options for cataloguing series:

- The separator between multiple series is switched form ; to the
  now commonly used | with a class for easy change of formatting.
- There was some missing logic that prevented the separator to show
  up correctly between traced and untraced series.
- For some series $v was included in the link for others not. Now
  $v always appears as text and only $a is linked, as this is what
  we actually search for.

To test this:
- You should be cataloguing multiple series in different ways, using
  - deprecated 440 (still present in old data)
  - 490, Ind. 1 = empty or 0 = not traced
  - 490, Ind. 1 = 1 = traced in combination with an 8xx field

Example (you should try a different combination!)
440 _ _ $aFirst series
490 _ _ $aSecond series ;$v1
490 1 _ $aThird series ;$v1 (this won't show, it will use 830 for display)
830 _ _ $aThird series ;$v1

Without patch:
Series: First Series; Second series ; 1Third series: 1

With patch:
Series: First series | Second series ; 1 | Third series ; 1

Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>