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...
You maybe run it only on RHEL. Sometimes even Fedora. But autotest is widely used by Canonical, Google, Fujitsu and other companies, who use different OSs too. This makes the test more reliable and easier to deploy.

This method is called only once per setup, I made sure it's not hanging and works fine. My biggest concern is about the names as in 5 years we might have `libc.so.7` or `librt.so.2` so I tried to make it as easy as possible for QA to use this test. (links to `libc.so` is in devel package...)