Matthiesen Lib API

What's Changed

• Add player event management with join and leave handlers by @Adammatthiesen in https://github.com/Matthiesen-dev/matthiesen-lib/pull/12
• Removes previously deprecated functions and methods from matthiesen-lib in favor of their matthiesen-lib-api alternatives by @Adammatthiesen in https://github.com/Matthiesen-dev/matthiesen-lib/pull/13

Full Changelog: https://github.com/Matthiesen-dev/matthiesen-lib/compare/v1.2.6...v1.3.0