Fix SplitClusterProbMap name detection
Detect whether a cluster split prob map might be available by scanning all properties, rather than only searching for certain public tools.
Also, synchronize the logic in combinedClusterSplitProbName with InDetRec_jobOptions. the former is used to determine the name of the ClusterSplitProbName of used for combined InDet tracks.
This addresses ATLASSIM-4898.