Add various packages and patches for build system improvements

- Introduced valgrind with a patch to respect flags and updated its configuration.
- Added Vulkan ICD loader with CMake build configuration.
- Implemented Waf build system with a custom build script and configuration.
- Included Wayland protocols with Meson build system.
- Added xcb-util-keysyms with autotools configuration.
- Introduced Yasm with multiple patches for compatibility and improvements.
- Added Yelp tools and XSL with Meson build configurations and necessary patches for POSIX compliance.

extra/aom/aom.toml

@@ -0,0 +1,36 @@
+[build]
+type = "cmake"
+
+[build.flags]
+build_dir = "build"
+configure = [
+    "-DBUILD_SHARED_LIBS=1",
+    "-DENABLE_TESTS=0",
+    "-G Ninja"
+]
+replace_cflags = [ "_FORTIFY_SOURCE=3=_FORTIFY_SOURCE=0" ]
+replace_cxxflags = [ "_FORTIFY_SOURCE=3=_FORTIFY_SOURCE=0" ]
+
+[dependencies]
+build = [
+    "cmake",
+    "ninja",
+    "yasm",
+]
+runtime = [
+    "glibc",
+    "libunwind",
+    "libcxx",
+]
+
+[package]
+description = "Alliance for Open Media video codec"
+homepage = "https://aomedia.org/"
+license = "BSD-3-Clause"
+name = "aom"
+version = "3.13.2"
+
+[[source]]
+extract_dir = "$name-$version"
+sha256 = "634039cc79c3a3307206b6c25ea759abc0e734c6f4ac14f6dbea5694e46af837"
+url = "https://storage.googleapis.com/aom-releases/libaom-$version.tar.gz"