Add :scholarlyUnit to BIBO

[kcoyle]

The scholarly unit where the activities were undertaken is commonly indicated in academic repositories using the dcterms:contributor property, but that seems to be too general for this purpose. There are also LOC and RDA vocabularies of contributor roles, but this kind of "happened within" role doesn't exist in either vocabulary.

Recommendation:

• Add scholarlyUnit to BIBO, defined as a subproperty of dcterms:contributor.

[tombaker]

"An organizational entity in which scholarly activities are undertaken"?