• Add support for PHP 8
• Drop support for PHP 7.0, 7.1 and 7.2

• [IMPROVED] Clarified behaviour of all(), any(), some() and first() when no coroutines are provided

This is the first stable release of recoil/api. There have been no changes to
the API since the 1.0.0-alpha.2 release.

• [NEW] Add select() operation

• Minor documentation edits

• Document behaviour of callables when yielded from a coroutine

• Initial release