extend project search function to additional fields

[bsennblad]

Please describe the feature

As a regular NBIS user, I want extend the “Search issue” to also search in Redmine field “WABI ID” so that Peer review projects can be more readily found using their 'WABI name'— if this is possible see potential catch below.

Detailed description

A wish list item that has come up in discussions with staff members is to extend the “Search issue” to additional fields in Redmine.
The Peer review projects are, by custom, assigned a “WABI ID”, constructed as , e.g C_Ling_2405, which is the main ID used when referring to a Peer review project. This is now contained in a Redmine custom field “WABI ID”. It would be really convenient to be able to enter a WABI ID in the Urdr “Search issue” box and retrieve the right project.
So the feature request is:

• extend the “Search issue” to also search in Redmine field “WABI ID” — if possible see potential catch below
• Potential catch: Not all Redmine projects have the field “WABI ID” activated and this can in some cases be an implementation stopper. In that case, a possible work-around could be to instead
  extend the “Search issue” to also search in Redmine field “Principal Investigator” (and/or “Name” — I am not sure of the realtion between these fields?!).