tinyboot v0.4.0 Released — The API is Stable

If you've been following tinyboot, you might have noticed there was no announcement for v0.3.0. That release added CH32V103 support, but things were still in flux. Crate structure was shifting, APIs were changing, the protocol was being reworked. I didn't want to write up something that'd be outdated in two weeks. I wanted to wait until the dust settled. And with v0.4.0, we have finally arrived at this point. Links Repository: OpenServoCore/tinyboot Handbook: openservocore.github.io/tinyboot Cha