ATLASRECTS-6125: Move EGCrackVetoCleaningTool to data handles

Christos Anastopoulosrequested to merge
ATLAS-EGamma/athena:EGCrackVetoCleaningTool_handles into master

Move EGCrackVetoCleaningTool to handles and small cleanup

Edited by Christos Anastopoulos

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