Lazyfunc

- Improved argument handling
- Updated docs
- Grouped method generation code in `LazyFuncMeta`

**Full Changelog**: https://github.com/josh-read/lazyfunc/compare/0.1.0...v0.2.0

What's Changed
First pass at:
* Basic library behaviour
* Tests
* Documentation
* CI

New Contributors
* shimwell made their first contribution in https://github.com/josh-read/lazyfunc/pull/1
* josh-read made their first contribution in https://github.com/josh-read/lazyfunc/pull/3

**Full Changelog**: https://github.com/josh-read/lazyfunc/commits/v0.1.0