move some BFLC terms to BF

[jodiw01]

Consider moving some BFLC properties and classes to the "regular" BF ontology.

• bflc:CaptureStorage (https://id.loc.gov/ontologies/bflc.html#c_CaptureStorage)
  requested by sound recording catalogers at LC, based on MARC 007/13

• bflc:relief/bflc:Relief (https://id.loc.gov/ontologies/bflc.html#p_relief and https://id.loc.gov/ontologies/bflc.html#c_Relief)
  requested by map catalogers at LC, based on MARC 008/18-21

[jodiw01]

See also #94

[jodiw01]

Also bflc:PrimaryContribution (https://id.loc.gov/ontologies/bflc.html#c_PrimaryContribution)

[jodiw01]

Updated at https://id.loc.gov/ontologies/bibframe.html