Merge branch 'mborsato/B2taunugamma' into 'master'
Added new files for B(c)->TauNuGamma decays
See merge request !2120 (merged)
(cherry picked from commit 6bed5fab)
fb1baa5c Added new files for B(c)->TauNuGamma decays
Co-authored-by: Fernando Jesus Abudinen Gallego fernando.abudinen@cern.ch