SpruceBandQ_JpsiToMuMuDetachedline validation using BtoJpsiK

This production is to test SpruceBandQ_JpsiToMuMuDetached line using B^+\to J/\psi K^+ decay. To compare the output of SpruceBandQ_JpsiToMuMuDetached line, Two methods are used to reconstruct B^+\to J/\psi K^+:

1. reconstruct B^+\to J/\psi K^+ decay using Hlt2BandQ_BpToJpsiKp_JpsiToMuMu line.
2. reconstruct B^+\to J/\psi K^+ decay using the combination of K^+ and J/\psi output from SpruceBandQ_JpsiToMuMuDetached line.