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)
Yes, I agree,
to be more complete, this part of the code should look like

```
 <class name="reco::IsolatedPixelTrackCandidate" ClassVersion="11">
  <version ClassVersion="10" checksum="3865088611"/>
  <version ClassVersion="11" checksum="264617237"/>

```