- Modified DNAClassAttribute to also support usage on structs

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

BlendFile/DNA/NodeGeometryCurveSelectHandles.cs

@@ -13,6 +13,7 @@ using System;
 namespace BlendFile.DNA {
     using BlendFile;
     
+    [DNAClassAttribute(703, "NodeGeometryCurveSelectHandles")]
     public struct NodeGeometryCurveSelectHandles {
         [DNAFieldAttribute(0, "uchar", "handle_type", 1)]
         public byte handle_type;