15309: Added functions for merging libraries.
15309: Added functions for merging libraries.

Arvados-DCO-1.1-Signed-off-by: Jeremy Chen <jchen@curii.com>

curoverse/l7g,curoverse/l7g,curoverse/l7g,curoverse/l7g,curoverse/l7g,curoverse/l7g,curoverse/l7g