maxscale-system-test changed in order to control test environment by itself.
Every test checks which machines are running, compare with list of needed machines
and start new VMs is they are missing in the running machines list.
Tests are executiong MDBCI commands, MDBCI executable should be in the PATH
The binlogrouter tests can safely use the sync_slaves functionality of the
test framework as long as a sensible timeout is used.
Cleaned up the tests by removing redundant code and allocating classes
from the stack thus removing the need to handle memory allocation.
