Merge branch 'yajing/b2dk_d2kspipipi0' into 'master'
Decfiles for B2DK, D2kspipipi0 signal, control channel and physics bkg
See merge request !1980 (merged)
(cherry picked from commit 6c587e73)
cd2987a8 Adding 9 new decfiles. fa44eb56 Fix bug. dd584141 Fix evttype. 9a4f83ee Fix hat.
Co-authored-by: Michal Kreps michal.kreps@cern.ch