More changes for a signal separation test

Stage 1 and 2 completed:
-  creation of datacards with SM as signal
-  transformation of bbH/ggH for each mA/tanb point, scaling to xs*Br (instead of normal xs*Br/tanb for tanb limits)

Stage 3:
- performing of the signal separation test for each mA/tanb point 

Stage 4: 
- plotting