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/shared-mime-info/postremove.sh

@@ -0,0 +1,5 @@
+if [ -d usr/share/mime ]; then
+  rm -f usr/share/mime/{globs,globs2,icons,treemagic,generic-icons,types,magic,XMLnamespaces,subclasses,aliases,mime.cache}
+  rm -rf usr/share/mime/{application,audio,image,inode,message,model,multipart,text,video,x-content,x-epoc}
+  rmdir --ignore-fail-on-non-empty usr/share/mime
+fi