This change converts all the existing regression tests in regress/games
to the new framework provided by atf. As a side effect, this also moves
all the tests programs in regress/games to tests/games.
adding support for Heimdal/KTH Kerberos where easy to do so. Eliminate
bsd.crypto.mk.
There is still a bunch more work to do, but crypto is now more-or-less
fully merged into the base NetBSD distribution.