This feature is not really implemented and maybe never was. In any case,
it makes sense to have that working per-test so we can specify different
values per test in case it's needed.
Change-Id: I3c1b95c10e974da87ec9abd25578d8bcc0bc55a3
This content is mostly specific to sysmocom's setup (thought it can
still be re-used by other people if willing to).
symlinks in ttcn3/ pointing to example/ are redone to point to
sysmocom/.
Change-Id: I364e0859c0851b9167907a4d948b659a0f6a19fb