B -> h e mu Hlt2 lines with control modes

HLT2 lines for B->hemu decays, including same-sign leptons and control modes (ee and mumu). The selections are based on the current Bu2LLK stripping lines.

Included emu modes:
B+ -> K+ e mu
B+ -> pi+ e mu
Bs -> phi(-> K K) e mu
B0 -> K*0(-> K pi) e mu
Lb -> p K e mu

Requires some builders from MR !1150 (merged)

Table of rates:

Line	Rate [kHz]
BdToKstEMuSS_KstToKpPim	0.1335
BdToKstEMu_KstToKpPim	0.2002
BsToPhiEMuSS_PhiToKK	0.0667
BsToPhiEMu_PhiToKK	0.0667
BuToKpEMuSS	0.1335
BuToKpEMu	0.1335
BuToPipEMuSS	0.0667
BuToPipEMu	0.1335
LbToPKEMuSS	0.1335
LbToPKEMu	0.0667
BdToKstJpsi_KstToKpPim_JpsiToEE	0.06674
BdToKstJpsi_KstToKpPim_JpsiToMuMu	0.0
BsToPhiJpsi_PhiToKK_JpsiToEE	0.0
BsToPhiJpsi_PhiToKK_JpsiToMuMu	0.0
BuToKpJpsi_JpsiToEE	0.06674
BuToKpJpsi_JpsiToMuMu	0.06674
BuToPipJpsi_JpsiToEE	0.0
BuToPipJpsi_JpsiToMuMu	0.06674
LbToPKJpsi_JpsiToEE	0.06674
LbToPKJpsi_JpsiToMuMu	0.0