Breaking Changes for 3.x

[drasticactions]

Hey folks!

If you're updating to 3.x and going "Where is (x) type!", for 3.x I added a source-generator that pulls in the atproto lexicon (among others) to generate the C# types. In doing so, I had to introduce breaking changes to type names to make it easier to source-gen and for consistency.

This results in some types being converted into classes from records, and names changing. If you see something missing, first check the lexicon for the name to validate what object you're looking for, it should be named the same (Or similar, if it collides with C# syntax). If you see an object in the lexicon, but can't find it here, please file a bug.