subtests.docker_cli: Add run_ipc test

ISSUE: https://github.com/autotest/autotest-docker/issues/371#issuecomment-61664433
BUGS: _TBD (There are couple of bugs I haven't yet filled in BZ, please reveiw it and in the mean time I'll add the links); due of one bug the `host_hcont_c1cont` test fails, other tests should pass._

This test utilizes the '--ipc' feature of docker and uses SysV shm
to share data between various setups (host and guests).

Signed-off-by: Lukáš Doktor <ldoktor@redhat.com>

__NOTE__: I set the `no_iteration` to quite high number, you might need to decrease it on some older HW as the tests runs in parallel...
__NOTE2__: I'll implement the remaining `TODO:` tests as special tests later, this is only the basic functionality...
Keep in context, our target will only be tested with the default for that variable, and the library location is unlikely change, ever in any timescale we care about.  Just as if your host and container's are expecting different KABI's, basically all bets of safety/supportability go out the window.  It all comes down to, "Do as little work (in code) as possible, for the local problem space, in the specific context at hand, to the quality the time-frame allows for".  Again, it doesn't need to be fixed, it's just a tip that I've found very helpful (and also have to remind myself of constantly).