Support BibTex "collaboration" field

Description

Typst currently ignores the "collaboration" field of .bib files. When present, it is usually preferred to show the collaboration rather than the authors of the paper. The best case would be if typst rendered something like: 'On behalf of the {collaboration} collaboration: {authors}' (or the other way around)

Use Case

In particle physics, large experimental collaborations (thousands of authors) often have a small number of people publish on behalf of the entire collaboration. BibTex supports citing such papers with the collaboration field, which InspireHEP generates as well. Typst currently ignores this field and just places the author's name, which is usually not what you want.