Last revision of the UAVCAN pre-release specification implementation

Significant changes ahead. The changes to be implemented are going to be deployed in a way that retains backward compatibility with fielded implementations; the codebase is going to be rather different though. Special thanks to Scott Dixon 🇺🇸 @thirtytwobits and Kjetil Kjeka 🇳🇴 @kjetilkjeka.

Fifth release candidate

v1.0.0rc5

Fourth release candidate

v1.0.0 release candidate 4

Third release candidate

v1.0.0 release candidate 3

Second release candidate

v1.0.0 release candidate 2

First release candidate

v1.0.0 release candidate 1