0.1a Repository built out ready for alpha testing

What's Changed

• repos implemented by @jordanpartridge in #1
• fix phpstan by @jordanpartridge in #4
• add visability enum by @jordanpartridge in #5
• Refactor repo by @jordanpartridge in #7

New Contributors

• @jordanpartridge made their first contribution in #1

Full Changelog: https://github.com/jordanpartridge/github-client/commits/0.1a