Add HLT2 lines for R(pK) analysis

This merge request adds HLT2 lines which are needed for the R(pK) analysis.

The following modes are included:

- Lambdab -> P K Mu Mu
- Lambdab -> P K Mu Mu (SS hadrons)
- Lambdab -> P K E E
- Lambdab -> P K E E (SS hadrons)

Rates are measured on testfiledb_key: upgrade_minbias_hlt1_filtered:

Hlt2RD_LambdabToPKEE_LineDecision     	 Incl: 0.06 +/- 0.06 kHz, Excl: 0.0  +/- 0.0  kHz
Hlt2RD_LambdabToPKEE_SS_LineDecision  	 Incl: 0.06 +/- 0.06 kHz, Excl: 0.0  +/- 0.0  kHz
Hlt2RD_LambdabToPKMuMu_LineDecision   	 Incl: 0.0  +/- 0.0  kHz, Excl: 0.0  +/- 0.0  kHz
Hlt2RD_LambdabToPKMuMu_SS_LineDecision	 Incl: 0.0  +/- 0.0  kHz, Excl: 0.0  +/- 0.0  kHz

Hlt2 Total:                              Rate:    0 +/- 0.1 kHz

Efficiencies are measured on Lambdab -> P K Mu Mu and Lambdab -> P K E E simulation:

## Lambdab -> P K Mu Mu
Hlt2RD_LambdabToPKEE_LineDecision               Efficiency:	 0.003 +/- 0.003
Hlt2RD_LambdabToPKEE_LineDecisionTrueSim     	Efficiency:	 0.003 +/- 0.003
Hlt2RD_LambdabToPKEE_SS_LineDecision            Efficiency:	 0.003 +/- 0.003
Hlt2RD_LambdabToPKEE_SS_LineDecisionTrueSim  	Efficiency:	 0.000 +/- 0.000
Hlt2RD_LambdabToPKMuMu_LineDecision             Efficiency:	 0.148 +/- 0.020
Hlt2RD_LambdabToPKMuMu_LineDecisionTrueSim   	Efficiency:	 0.148 +/- 0.020
Hlt2RD_LambdabToPKMuMu_SS_LineDecision          Efficiency:	 0.003 +/- 0.003
Hlt2RD_LambdabToPKMuMu_SS_LineDecisionTrueSim	Efficiency:	 0.000 +/- 0.000

## Lambdab -> P K E E
Hlt2RD_LambdabToPKEE_LineDecision               Efficiency:	 0.127 +/- 0.022
Hlt2RD_LambdabToPKEE_LineDecisionTrueSim     	Efficiency:	 0.109 +/- 0.021
Hlt2RD_LambdabToPKEE_SS_LineDecision            Efficiency:	 0.013 +/- 0.008
Hlt2RD_LambdabToPKEE_SS_LineDecisionTrueSim  	Efficiency:	 0.000 +/- 0.000
Hlt2RD_LambdabToPKMuMu_LineDecision             Efficiency:	 0.000 +/- 0.000
Hlt2RD_LambdabToPKMuMu_LineDecisionTrueSim   	Efficiency:	 0.000 +/- 0.000
Hlt2RD_LambdabToPKMuMu_SS_LineDecision          Efficiency:	 0.000 +/- 0.000
Hlt2RD_LambdabToPKMuMu_SS_LineDecisionTrueSim	Efficiency:	 0.000 +/- 0.000

FYI @vlisovsk