Add `publisher` and `issued` query parameters for lobid-resources

See: https://github.com/hbz/nwbib/issues/49, https://github.com/hbz/nwbib/issues/54

Deployed to staging:

http://test.lobid.org/resource?name=Typee&publisher=Winkler
http://test.lobid.org/resource?name=Typee&issued=1996