Add Bs2MuMuGamma stripping line
Merge request with the line only!
The retention rates are as follows (for 2012):
StrippingReport INFO Event 30000, Good event 30000
| *Decision name*|*Rate,%*|*Accepted*| *Mult*|*ms/evt*|
|_StrippingGlobal_ | 0.4400| 132| | 2.664|
|_StrippingSequenceStreamLeptonic_ | 0.4400| 132| | 2.652|
|!StrippingBs2MuMuGammaLine | 0.4400| 132| 2.197| 1.931|
|!StrippingBs2MuMuGammaLine_TIMING | 0.4400| 132| 2.197| 0.123|
FILES TO MERGE: StrippingBs2MuMuGamma.py
Edited by Ifan Williams