IsoCalib01

Modifications to improve IsoTrackHB/IsoTrackHE HLT's to improve efficiency and trigger rate (also speed). Also added codes to do the IsoTrack calibration (preparation of ROOT trees and do offline calibration)
As far as I can tell it should be:
<class name="reco::IsolatedPixelTrackCandidate" ClassVersion="11">
<version ClassVersion="11" checksum="264617237"/>

I don't actually know if the old version (10) should be there but you should not change checksums of a given version.

@slava77 you know better here, you can advise.