Fix paths that use transarc locations, add compatibility packages

These commits include:
* Fix all the transarc paths:  There are a bunch of references to transarc paths in systemd units and where files are installed that needed to be fixed to point at the system locations
* The openafs-compat subpackage is restored from upstream
* Two new subpackages are created, openafs-transarc-client, which has /usr/vice, and openafs-transarc-server, which populates /usr/afs/
* A bump up to version 1.6.10 and the inclusion of a new server executable (volscan) and its man page
* A fix that should also be pushed upstream, putting the 'kaserver' man page into the server RPM.