Exploratory port of Window Maker to Rust. This is intended to facilitate extending Window Maker in new directions (speculatively: lots of fixes to the experience under Xorg, experiment with new window management UX, target Wayland).
Bazel rule for `pkg-config`. This is a separate fork of https://github.com/cherrry/bazel_pkg_config for vitrine. It may be turned down after bug fixes are merged into the GitHub version.
