Proto commits in videolan/vlc-3.0

These 2 commits are when the Protocol Buffers files have changed:

Commit:984edfd
Author:Jean-Baptiste Kempf
Committer:Jean-Baptiste Kempf

chromecast: Fix copyright line

The documentation is generated from this commit.

Commit:31d84ce
Author:Adrien Maglo
Committer:Adrien Maglo

chromecast: add protobuf file Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>