Gamepad support and some UI changes

I'm alive, working (I haven't updated for a long time). This is due to thinking about what I want to turn the game into.

I also think it's better to add or remove.

Of the important:
- Now the interface is completely redrawn, the first screenshot is new (the second screenshot is old, for comparison).
- I removed the extra hammers, now they are gone;
- Added gamepad support;

Either today, or tomorrow I'll upload it to the experimental version. There are a couple of things that need to be worked out a little more.