- Modified DNAClassAttribute to also support usage on structs

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

BlendFile/DNA/UserDef_FileSpaceData.cs

@@ -13,6 +13,7 @@ using System;
 namespace BlendFile.DNA {
     using BlendFile;
     
+    [DNAClassAttribute(1011, "UserDef_FileSpaceData")]
     public struct UserDef_FileSpaceData {
         [DNAFieldAttribute(0, "int", "display_type", 4)]
         public int display_type;