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/valgrind/valgrind.toml

@@ -0,0 +1,45 @@
+[build]
+type = "autotools"
+
+[build.flags]
+skip_tests = true
+replace_cflags = [ "-fstack-protector-strong=-fno-stack-protector" ]
+replace_cxxflags = [ "-fstack-protector-strong=-fno-stack-protector" ]
+no-remove-static = true
+post_install = [ "install -Dm644 docs/*.1 -t $DESTDIR/usr/share/man/man1" ]
+
+[dependencies]
+build = [
+    "lib32-glibc",
+    "lib32-libcxx",
+    "docbook-xml",
+    "lib32-libunwind",
+    "docbook-xsl",
+    "docbook-sgml",
+]
+optional = [
+    "lib32-glibc",
+    "python",
+]
+runtime = [
+    "glibc",
+    "perl",
+]
+test = ["procps-ng"]
+
+[[manual_sources]]
+files = [ "valgrind-3.7.0-respect-flags.patch", "valgrind-3.26.0-ungnuify.patch" ]
+
+[package]
+description = "Tool to help find memory-management problems in programs"
+homepage = "https://valgrind.org/"
+license = "GPL-2.0-or-later"
+name = "valgrind"
+version = "3.26.0"
+
+[[source]]
+extract_dir = "$name-$version"
+patches = [ "valgrind-3.7.0-respect-flags.patch", "valgrind-3.26.0-ungnuify.patch" ]
+post_extract = ["autoreconf -fiv"]
+sha256 = "8d54c717029106f1644aadaf802ab9692e53d93dd015cbd19e74190eba616bd7"
+url = "https://sourceware.org/pub/valgrind/valgrind-$version.tar.bz2"