strip cluster on/off track dqm@hlt

- add on-track cluster charge also for subDET
- add monitoring of the on/off-track strip cluster @HLT
this is triggered often. see:
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-4920/591/runTheMatrix-results/4.53_RunPhoton2012B+RunPhoton2012B+HLTD+RECODreHLT+HARVESTDreHLT/step3_RunPhoton2012B+RunPhoton2012B+HLTD+RECODreHLT+HARVESTDreHLT.log

is it expected?