Add new RelInfoTrackIsolationBDT2 to Bs2MuMuLines, LFVLines and Tau23MuLines

A new tool RelInfoTrackIsolationBDT2 for the calculation of BDT track isolations is added (for slides see here). It is based on a TupleTool for the 2017 B2mumu analysis (for the TupleTool implementation see here).

The new tool is added to the following lines:

StrippingBs2MuMuLinesNoMuIDLine
StrippingBs2MuMuLinesWideMassLine
StrippingBs2MuMuLinesBu2JPsiKLine
StrippingBs2MuMuLinesBs2JPsiPhiLine
StrippingBs2MuMuLinesSSLine
StrippingBs2MuMuLinesBd2JPsiKstLine

StrippingLFVB2eMuLine
StrippingLFVB2eeLine
StrippingLFVBu2KJPsieeLine
StrippingLFVB2heMuLine
StrippingLFVJPsi2MuMuControlLine
StrippingLFVJPsi2eMuLine
StrippingLFVJPsi2eeControlLine
StrippingLFVPhi2MuMuControlLine
StrippingLFVPhi2eMuLine
StrippingLFVPhi2eeControlLine
StrippingLFVPromptJPsi2MuMuControlLine
StrippingLFVPromptJPsi2eMuLine
StrippingLFVPromptJPsi2eeControlLine
StrippingLFVPromptPhi2MuMuControlLine
StrippingLFVPromptPhi2eMuLine
StrippingLFVPromptPhi2eeControlLine
StrippingLFVupsilon2eMuLine
StrippingLFVupsilon2eeLine

StrippingTau23MuTau23MuLine
StrippingTau23MuDs2PhiPiLine
StrippingTau23MuTau2PMuMuLine

New RelInfo keys have to be added to Phys package. For the corresponding merge request see here.

Be aware that the tool requires a new release of TMVAWeights to get the correct weights files. As long as the package is not updated the weights can be accessed by switching the lines 74 and 75 in Phys/IsolationTool/src/RelInfoTrackIsolationBDT2.cpp