v0.1.0 pre-release

Currently almost everything we need is here I think.

There will be more utils about world generation and inventory gui before long if no accident happens, which completes v0.1.0. After that I'm going to focus on the development of IndustrialWorld, the original target of this library.

Full Changelog: https://github.com/Plugindustry/WheelCore/commits/v0.1.0