Allowing to configure parameter "tolerance" in track extrapolation to study optimal setting for CPU savings
Default value of tolerance is unchanged, so this MR should not affect any results. It just gives us possibility to test optimal value of the tolerance, which is the parameter that has direct effect on the precision of the extrapolation but most importantly also on the CPU resources which we want to optimise
Adding new flag ConfigFlags.Trigger.Jet.PFlowTolerance which allows to set the tolerance and changing extrapolator to (newly added) HLT_PFlowExtrapolator which allows to configure tolerance