Added submodule with Dawn binaries (experimental).

.gitignore

@@ -34,6 +34,7 @@
 !.vimrc
 !.gitkeep
 
+!/libs/zgpu/libs/**
 !/libs/zwin32/bin/x64/*
 
 # Ignore some special directories

.gitmodules

@@ -0,0 +1,4 @@
+[submodule "libs/zgpu/libs/dawn"]
+	path = libs/zgpu/libs/dawn
+	url = https://github.com/michal-z/dawn-bin
+	branch = main

build.zig

@@ -3,6 +3,13 @@ const std = @import("std");
 
 pub fn build(b: *std.build.Builder) void {
     ensureGitLfs(b.allocator);
+    {
+        var child = std.ChildProcess.init(&.{ "git", "submodule", "update", "--init", "--remote" }, b.allocator);
+        child.cwd = thisDir();
+        child.stderr = std.io.getStdErr();
+        child.stdout = std.io.getStdOut();
+        _ = child.spawnAndWait() catch unreachable;
+    }
 
     var options = Options{
         .build_mode = b.standardReleaseOptions(),