TrigLongLivedParticles → TrigSteer Relation

File in Trigger/TrigAlgorithms/TrigLongLivedParticles	Includes file in Trigger/TrigSteer
src / Trigger/TrigAlgorithms/TrigLongLivedParticles/src/MuonCluster.h	TrigCompositeUtils / TrigCompositeUtils / TrigCompositeUtils.h