Initial commit: AetherBags + KamiToolKit for FC Gitea

Co-authored-by: Cursor <cursoragent@cursor.com>

KamiToolKit/Classes/GenericUtil.cs

@@ -0,0 +1,18 @@
+using System;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+namespace KamiToolKit.Classes;
+
+internal static class GenericUtil {
+    public static bool AreEqual<T>(T? left, T? right) {
+        if (default(T) == null) return ReferenceEquals(left, right);
+
+        if (left == null || right == null) return left == null && right == null;
+
+        var leftSpan = MemoryMarshal.CreateReadOnlySpan(ref Unsafe.As<T, byte>(ref left), Unsafe.SizeOf<T>());
+        var rightSpan = MemoryMarshal.CreateReadOnlySpan(ref Unsafe.As<T, byte>(ref right), Unsafe.SizeOf<T>());
+
+        return leftSpan.SequenceEqual(rightSpan);
+    }
+}