.github: .gitlab-ci: add macos (xquartz) build job

Signed-off-by: Mike Gelfand <mikedld@mikedld.com>

.github/scripts/macos/install-pkg.sh

@@ -0,0 +1,38 @@
+#!/bin/sh
+
+set -e
+
+brew update
+
+brew install \
+	autoconf \
+	automake \
+	bdftopcf \
+	libapplewm \
+	libtool \
+	libx11 \
+	libxau \
+	libxaw \
+	libxcb \
+	libxdmcp \
+	libxext \
+	libxfixes \
+	libxfont2 \
+	libxkbfile \
+	libxi \
+	libxmu \
+	libxrender \
+	libxt \
+	libxtst \
+	meson \
+	mkfontscale \
+	pkgconf \
+	pixman \
+	util-macros \
+	xdpyinfo \
+	xkbcomp \
+	xkeyboard-config \
+	xtrans
+
+pip3 install --break-system-packages \
+	mako