SusyAnaDefsMatt: PlotRegion, PRNames add sr8lpt, sr9lpt
FakeClosurePlot: also plot looser selection regions (sr8lpt, sr9lpt)
SusyPlotter bugfix: sr8lpt and sr8 labels were swapped
FakeClosurePlot::plotAll improve labels

Details:
- pass in the channel string rather than the channel int
- pass in the selection label
- print both ch and selection as a label
fix_histogram_names: fix initial version
do not print all histos, just a summary
add my name for the WH region
MatrixPrediction : add m_allconfigured and run only if evth is ok
switch to the sr def used in my matrix FR_SRDavide->FR_SR_WHSS