[2] Separation of class number display on brief results page

[clawre]

For all records where there are copies at both BJL and KDL, the class numbers are displayed in a single field labelled 'Class number' on the brief results page, separated by a semi-colon. Where this is the case it would be useful to display them in separate fields, as follows (for item b2125006):

BJL class number HD 30.4 S2
KDL class number 650.072 SAU