Comment 1 for bug 1834665

Working branch:

https://git.evergreen-ils.org/?p=working/Evergreen.git;a=shortlog;h=refs/heads/user/berick/lp1834665-ang-marc-flat-editor

Code works as advertised. Will add release notes after confirming no glaring problems or omissions.

As it stands, the editor component only works for bib records, but teaching it about authority records is on my radar and should be fairly straightforward.