This commit and a couple before represent a set of random additions I've
made to the code, while utilizing it.
I guess, I've learned my lesson now, so I'll make sure to commit these
changes ASAP instead.
- Renamed main crate to `kyomato-lib`, while `kyomato` name was given to a nested crate that contains an actual `Kyomato` cli
- Created a helper script for easier `Kyomato usage`, check docs for details
- Added a bit of description for the script
