Introducting a motey

[tomaszkax86]

There's a lot of odd code in Colobot. I don't think there's a single person who can comprehend it all at once. And there's tons of wrong code. Code that works on top of undefined behaviors in C++. We do have lint and we use it to detect bad changes in the code, but there's so much more to fix. We'll be glad if you can help us fix this mess.

I think krzys_h could explain how we use lint better than I can.