Package spirv-reflect for building shaders

Usually not available in Linux Distributions as it isn't customary to
package the SDK but only the bits needed as separate packages.

Signed-off-by: Ralph Sennhauser <ralph.sennhauser@gmail.com>

libraries/source/spirv-reflect/build.sh

@@ -0,0 +1,35 @@
+#!/bin/sh
+set -e
+
+cd "$(dirname "$0")"
+
+PV=1.3.290.0
+LIB_VERSION=${PV}
+
+if [ -e .already-built ] && [ "$(cat .already-built || true)" = "${LIB_VERSION}" ]; then
+	echo "spirv-reflect is already up to date."
+	exit
+fi
+
+# fetch
+if [ ! -e "vulkan-sdk-${PV}.tar.gz" ]; then
+	curl -fLo "vulkan-sdk-${PV}.tar.gz" \
+		"https://github.com/KhronosGroup/SPIRV-Reflect/archive/refs/tags/vulkan-sdk-${PV}.tar.gz"
+fi
+
+# unpack
+rm -Rf "SPIRV-Reflect-vulkan-sdk-${PV}"
+tar xf "vulkan-sdk-${PV}.tar.gz"
+
+# configure
+cmake -B build -S "SPIRV-Reflect-vulkan-sdk-${PV}" \
+	-DCMAKE_INSTALL_PREFIX="$(realpath . || true)"
+
+# build
+cmake --build build
+
+# install
+rm -Rf bin
+cmake --install build
+
+echo "${LIB_VERSION}" >.already-built