examples for by receptor and by ligand VS

sometimes you want a bunch of receptors with a few ligands or vice versa.
scripts are provided for both:
  1. by ligands; json dbs are set up as hash keyed first by ligand
  1. by receptors; json dbs are set up as hash keyed first by receptor
Merge branch 'master' of https://github.com/demianriccardi/HackaMol-X-Vina