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/mallard-ducktype/mallard-ducktype.toml

@@ -1,6 +1,9 @@
 [build]
 type = "python"
 
+[build.flags]
+post_install = [ "sed -i '1s|^#!python$|#!/usr/bin/python3|' \"$DESTDIR/usr/bin/ducktype\"" ]
+
 [dependencies]
 build = [
     "python-setuptools",