Qvs gandtk met

General interest
1) add Q vs G likelihood
2) fix multilepton config as introduced in 124
3) created metAnalyzer and added tkmet
4) added some official T2tt sample
5) cleanUp of ttHIsoTrackAnalyzer.py

MT2 specific
A) fix initial parameter  in KT
B) switch off with congfigurable AntiKT hemisphere
C) restored default file compression