first AddParticle with all Particle parameters added in GTreeMeson. To make sure photons are filled before chargedPi meson Reconstruction level 2 is commented out at the moment.
level 2 of meson reconstruction working again. I need to add different arrays for particle types. the loop over SubParticles will need one more command per particle, but to keep only one array one need a lot more time to order them correctly.
bugfix in SetBranchAdresses, SetBranches, and AddParticle
bugfix in removing particles in GTreeParticle and filling particle Properties to GTreeMesons.