Proto commits in mikkokko/csgo_gc

These 3 commits are when the Protocol Buffers files have changed:

Commit:a0b60ca
Author:mikkokko
Committer:mikkokko

fixes for 1.30.0.1

The documentation is generated from this commit.

Commit:89899d3
Author:mikkokko

add steammessages.proto

Commit:ea5ca54
Author:mikkokko

init