TRD Clusterizer Hotfix
This MR fixes the problem in the TRD clusterizer that occurs when two selftriggered digis are on neighbored addresschannels but inbetween is a change in the padrow. Previously these digis were added to the same cluster, with this fix this should not happen anymore.
Also the IsClusterComplete function is hardened against incorrect cluster sizes reported by CbmTrdCluster::GetNCols() and CbmTrdCluster::GetNRows(), which were reported for the incorrectly built clusters described above and led to crashes in reconstruction of mCBM2024 data.