This uses osmo-ttcn3-hacks Change-Id
I3db452e24e5238aa05254d903739c64d202e61db, which introduces
some shared/common config file as well as per-testcase pcap file
generation.
Ideally we would want to launch a group of containers with their own
private network segment and use the same static IP addresses in those
isolated networks.
The stupidity of docker is requiring unique IPv4 addresses even on
isolated (!) networks. This means we have to manually give each of our
test setups a different subnet, and then we can at least run one
instance that test in parallel to at most one instance of each other
test.
If this weird reestriction about unique IPv4 addresses didn't exist,
we could start any number of test runs in parallel.
A lof of what the Dockerfiles so far did in terms of cloning library
repositories and calling shell scripts has now been implemented as
part of the Makefiles inside osmo-ttcn3-hacks.git, so we can drop it
here and simply use those.