Zip .ui translations per UIConfig target.

Fix installer / scp2 to not ignore directory prefix in 'Name'.

Change-Id: Ib319363c8be73a72029f1ba3833e518e15c55e29
Reviewed-on: https://gerrit.libreoffice.org/6915
Reviewed-by: David Tardon <dtardon@redhat.com>
Tested-by: David Tardon <dtardon@redhat.com>