BnoC: Added B2HH Hlt2 and Sprucing lines
Hlt2 and Sprucing lines for charmless two-body B decays.
Ready for merging as soon as !2203 (merged) is merged to master
Estimated rate: 0.13348 \pm 0.0943\ {\rm kHz}
Estimated efficiency: 37\% on simulated B^0\to K\pi and B_s^0\to KK decays
Edited by Zewen Chen