Added KF instance in the mcbm_hadron_anlysis.C macro

Previously, the PrimaryVertex branch was not defined, so the CbmHadronAnalysis task didn't collect the related distributions.
After one of the previouse commits the PrimaryVertex branch was introduced, and the task was executing the CbmStsKFTrackFitter,
which failed. The failure was caused by the undefined CbmKF task instance.
This commit introduces the CbmKF task and all other related settings to the macro.