Not a stand-alone tool. should be ran in cluster3

1. needs Galaxy modules
2. needs openbabel (see "# OpenBabel path" in Site2/site.py)
3. need to set site_db path in "libfr_site.py" e.g.)

SITE_DB_HOME = '/home/j2ho/projects/GalaxySite2/Site2/site_db'

4. needs Alphafold mmcif pdbs, rcsb pdb DB ... (otherwise will try to download from rcsbpdb using "wget")
5. uses DB/site_sdfs from /home/j2ho (in our cluster)
6. needs foldseek or mmseq (depending on -tsm option / see search functions in Site2/libfr_site.py) "/home/j2ho/bin/foldseek/bin/foldseek"

How to run ..

$ python3 run_site.py -p {protein PDB file} -tsm foldseek -t result