Move data with {{brk}} in 563$a and 031$q

[jenniferward]

Coming from here: https://github.com/rism-digital/muscat/issues/985

In the fields 563$a and 031$q that contain {{brk}}:

• For 031$q, after each {{brk}} move to a new $q (new subfield only)
• For 563$a, after each {{brk}} move to a new 563$a (new field)

(031$q with brk: 451 records; 563$a with brk: 417 records)