wayland-protocols contains Wayland protocols that add functionality
not available in the Wayland core protocol. Such protocols either add
completely new functionality, or extend the functionality of some
other protocol either in Wayland core, or some other protocol in
wayland-protocols.

A protocol in wayland-protocols consists of a directory containing a
set of XML files containing the protocol specification, and a README
file containing detailed state and a list of maintainers.
