Draft: Add HLT2 lines for B(s)->Eta_c p pbar and B- ->Eta_c Lambda pbar

This is the HLT2 line for B0 -> eta_c p pbar, B_s0 -> eta_c p pbar, and B- ->eta_c Lambda pbar

Based on master branch

Rate:

Hlt2B2CC_BsToEtacPPbar = 1140kHz * (4.06 +/-0.19) % = 58.5 +/- 2.7 kHz

BuToEtacPPbar = 1140kHz *(3.05+/-0.18) = 43.9 +/- 2.6 kHz

BdToEtacLambdaDDPbar = 1140kHz *(0.1 +/-0.03) % = 1.44 +/- 0.43 kHz

BdToEtacLambdaLLPbar = 1140kHz *(0.22 +/-0.03) % = 3.17 +/- 0.66 kHz