MIMP: fix minor issues, add "catch-all" mode
MIMP: fix minor issues, add "catch-all" mode

as a temporary solution for site types
where enzyme-site associations are not known.

+ document and move up residues group logic.
+ support kinases/enzymes with '/' in name

reimandlab/Visualisation-Framework-for-Genome-Mutations,reimandlab/Visualisation-Framework-for-Genome-Mutations,reimandlab/Visualistion-Framework-for-Genome-Mutations,reimandlab/ActiveDriverDB,reimandlab/ActiveDriverDB,reimandlab/ActiveDriverDB,reimandlab/Visualistion-Framework-for-Genome-Mutations,reimandlab/Visualisation-Framework-for-Genome-Mutations,reimandlab/Visualistion-Framework-for-Genome-Mutations,reimandlab/Visualisation-Framework-for-Genome-Mutations,reimandlab/ActiveDriverDB,reimandlab/Visualistion-Framework-for-Genome-Mutations,reimandlab/Visualisation-Framework-for-Genome-Mutations