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/libclc/libclc.toml

@@ -0,0 +1,27 @@
+[build]
+type = "cmake"
+
+[build.flags]
+build_dir = "build"
+configure = ["-G Ninja"]
+source_subdir = "libclc"
+
+[dependencies]
+build = [
+    "cmake",
+    "spirv-llvm-translator",
+    "python",
+    "ninja"
+]
+
+[package]
+description = "Library requirements of the OpenCL C programming language"
+homepage = "https://libclc.llvm.org/"
+license = "Apache-2.0 WITH LLVM-exception"
+name = "libclc"
+version = "22.1.1"
+
+[[source]]
+extract_dir = "$name-$version"
+sha256 = "9c6f37f6f5f68d38f435d25f770fc48c62d92b2412205767a16dac2c942f0c95"
+url = "https://github.com/llvm/llvm-project/releases/download/llvmorg-$version/llvm-project-$version.src.tar.xz"