- Modified DNAClassAttribute to also support usage on structs

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

BlendFile/DNA/bGPDlayer_Mask.cs

@@ -13,6 +13,7 @@ using System;
 namespace BlendFile.DNA {
     using BlendFile;
     
+    [DNAClassAttribute(266, "bGPDlayer_Mask")]
     public class bGPDlayer_Mask {
         [DNAFieldAttribute(0, "bGPDlayer_Mask", "*next", 152)]
         public bGPDlayer_Mask ptr_next;