Retropath2-wrapper

- fix: matches species with multiple letters when checking

- chore(error): changed returned error codes
- fix(main): strip spaces in `source_inchi`

- docs(README): provide details for MacOS execution
- fix(Args): disable unused argument
- fix(retropath2): handle spaces in CSV files
- fix(main): remove unused option

- fix(check_inchi_from_file): work for unquoted source ID
- style(retropath2): disable unused argument `is_forward`
- docs(README): update use section

- fix(main): fix variable names

- add the ability to pass InChI and name of target to produce directy in cli argument (`--source_inchi` `--source_name`)
- printout cosmetic