Substructure searching

Written by Jiankun Lyu, 2017/09/13

The hierarchy of the directories:

thin_spheres_parameter_scanning----- working 
                                                                |
                                                                |------ ZINC-downloader-2D-smi.database_index
              |                                                 | 
              |                                                 |------ sub_pattern.smarts
              |                                                 
              |                                                 
              |
              ------- script ------ submit.csh
                              |
                              |------ submit_sub_search.csh
                              |
                              |------ run_sub_search.csh
                              |
                              |------ search_multi_substructures.py
                              |
                              |------ setup_substructure_searching_files.py