Add Bc->J/psirho+ with BC_VHAD model
New DecFile for the Bc -> J/psi rho+(-> pi+ pi0) decay using updated BC_VHAD model. TightCuts are used. Model will appear in next Gauss release, but local testing of DecFile with nightly version is fine. We waiting until the new Gauss (see this MR) will be deployed to pass DecFile test.
Edited by Dmitrii Pereima