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/vala/0001-valadoc-Fix-gvRenderData-to-match-graphviz-13.0.0.patch

@@ -0,0 +1,54 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: kotontrion <kotontrion@tutanota.de>
+Date: Tue, 17 Jun 2025 11:49:48 +0200
+Subject: [PATCH] valadoc: Fix gvRenderData to match graphviz 13.0.0
+
+The gvRenderData changed the length type for the array to size_t. Change
+the length type in the vapi and in the chart's write_buffer function.
+
+There are more similar breaking changes which would need changes in the
+vapi but are not included in this patch. This is the minimal change to
+make valadoc work with graphviz 13.0.0.
+
+Source: https://gitlab.gnome.org/GNOME/vala/-/issues/1621#note_2473334
+---
+ libvaladoc/charts/chart.vala | 5 +++--
+ vapi/libgvc.vapi             | 2 +-
+ 2 files changed, 4 insertions(+), 3 deletions(-)
+
+diff --git a/libvaladoc/charts/chart.vala b/libvaladoc/charts/chart.vala
+index 4e642d1ce96e..5ef49527b2f0 100644
+--- a/libvaladoc/charts/chart.vala
++++ b/libvaladoc/charts/chart.vala
+@@ -52,15 +52,16 @@ public class Valadoc.Charts.Chart : Api.Visitor {
+ 		context.render (graph, file_type, file);
+ 	}
+ 
+-	public uint8[]? write_buffer (string file_type) {
++	public uint8[:size_t]? write_buffer (string file_type) {
+ 		if (context == null) {
+ 			context = factory.create_context (graph);
+ 		}
+ 
+-		uint8[]? data;
++		uint8[:size_t]? data;
+ 
+ 		/* This will return null in data if it fails. */
+ 		context.render_data (graph, file_type, out data);
++
+ 		return data;
+ 	}
+ 
+diff --git a/vapi/libgvc.vapi b/vapi/libgvc.vapi
+index b128a02adcb7..8a2211ce20b6 100644
+--- a/vapi/libgvc.vapi
++++ b/vapi/libgvc.vapi
+@@ -91,7 +91,7 @@ namespace Gvc {
+ 		public int render_jobs (Graph graph);
+ 
+ 		[CCode (cname = "gvRenderData")]
+-		public int render_data (Graph graph, [CCode (type = "char*")] string file_type, [CCode (array_length_type = "unsigned int", type = "char**")] out uint8[] output_data);
++		public int render_data (Graph graph, [CCode (type = "char*")] string file_type, [CCode (array_length_type = "size_t", type = "char**")] out uint8[] output_data);
+ 	}
+ 
+ 	[Compact]