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/waf/build.sh

@@ -0,0 +1,17 @@
+py_ver=$(python3 -c "import sys; print(str(sys.version_info.major)+'.'+str(sys.version_info.minor))")
+sed -e "/test(i/ s|dirname|'python${py_ver}/site-packages/waf'|" -i waf-light
+head -n 30 waf | tail -n 28 | sed -e 's/# //g; s/"""//g' > LICENSE
+./waf-light \
+    configure --prefix=/usr \
+    build --make-waf
+sed -i '/^#==>$/,/^#<==$/d' waf
+install -vDm 755 waf -t "$DESTDIR/usr/bin"
+install -vDm 644 wscript -t "$DESTDIR/usr/share/waf/"
+# installing, byte-compiling waflib and stripping DESTDIR from it
+install -vDm 644 waflib/*.py -t "$DESTDIR/usr/lib/python$py_ver/site-packages/waf/waflib/"
+install -vDm 644 waflib/Tools/*.py -t "$DESTDIR/usr/lib/python$py_ver/site-packages/waf/waflib/Tools/"
+install -vDm 644 waflib/extras/*.py -t "$DESTDIR/usr/lib/python$py_ver/site-packages/waf/waflib/extras/"
+python -m compileall -d "/usr/lib/python$py_ver" "$DESTDIR/usr/lib/python$py_ver/"
+python -O -m compileall -d "/usr/lib/python$py_ver" "$DESTDIR/usr/lib/python$py_ver/"
+
+

extra/waf/waf.toml

@@ -0,0 +1,17 @@
+[build]
+type = "custom"
+
+[dependencies]
+build = ["unzip"]
+runtime = ["python"]
+
+[package]
+description = "General-purpose build system modelled after Scons"
+homepage = "http://waf.io/"
+license = "BSD-3-Clause"
+name = "waf"
+version = "2.1.9"
+
+[[source]]
+extract_dir = "$name-$version"
+url = "https://gitlab.com/ita1024/waf.git#waf-$version"