misc: Dirty Hacks

Enable this settings screen via a boolean in Config.json
First one is the xb2 menu softlock fix

src/Ryujinx.Common/Configuration/DirtyHacks.cs

@@ -0,0 +1,11 @@
+using System;
+
+namespace Ryujinx.Common.Configuration
+{
+    [Flags]
+    public enum DirtyHacks
+    {
+        None = 0,
+        Xc2MenuSoftlockFix = 1 << 10
+    }
+}