- Modified DNAClassAttribute to also support usage on structs

- Added auto generation of DNAClass attributes on file generation
- Regenerated all files

BlendFile/DNA/bUserMenuItem_Op.cs

@@ -13,6 +13,7 @@ using System;
 namespace BlendFile.DNA {
     using BlendFile;
     
+    [DNAClassAttribute(1002, "bUserMenuItem_Op")]
     public class bUserMenuItem_Op {
         [DNAFieldAttribute(0, "bUserMenuItem", "item", 88)]
         public bUserMenuItem item;