Commandline option to parse json and exit, shell script to run cataclysm with this option and strip terminal control characters

Usage:
   **code_doc/contrib/verify_json.sh**
**Good json**:
No output, exit code 0
**Bad json**
```
DEBUG: data/json/items/books.json: line 7:121: missing separator
        "name" : "Playboy",
        "max_level" : 0,
        "description" : "You can read it for the articles. Or for the hot
naked json as they strip themselves of commas"
^
        "weight" : 60,
        "to_hit" : 1,
        "color" : "pink",
```

exit code 1