v1.0.0

First release of CETL. Contains only the span type.

C++ Base Version	C++ Target Version	Original Release Date*
C++14	C++20	2023-03-30

^{* Sometimes we need to update the release notes but we won't change/move the git tag associated with a release (pinky-promise!)}

C++ Base Version – The version of C++ required to use this release of CETL.

C++ Target Version – The newest version of C++ this version of CETL was tested against. This version may increase
without a new release if a new version is released and the community is able to verify the existing release against it.

What's Changed

• Adding span to CETL by @thirtytwobits in #5
• Setting up GitHub actions by @thirtytwobits in #17
• Fixing #16 and introducing polyfill namespaces. by @thirtytwobits in #18
• more pro forma changes before graduation by @thirtytwobits in #19

New Contributors

• @thirtytwobits made their first contribution in #5

Full Changelog: https://github.com/OpenCyphal/CETL/commits/v1.0.0