Support quarkDB NS without systemd in CI
Problem to solve
Current default EOS NS in CI is inMemory. This is OK for EOS4 but deprecated in EOS5. QuarkDB NS can only run with systemd for now. This should be changed to make it easier to run EOS5 in CI.
Intended users
Initially CI and developers targetting EOS5, then this should become the default NS and we should phase out inMemory NS.