Expose WPIStruct for Twist3d

Author: mailmindlin

subprojects/robotpy-wpimath/gen/geometry/Twist3d.yml

@@ -1,5 +1,8 @@
 ---
 
+extra_includes:
+  - wpystruct.h
+
 classes:
   Twist3d:
     force_no_default_constructor: true
@@ -86,4 +89,6 @@ inline_code: |
                      "ry=" + std::to_string(tw.ry()) + ", "
                      "rz=" + std::to_string(tw.rz()) + ")";
     })
-  ;
+  ;
+
+  SetupWPyStruct<frc::Twist3d>(cls_Twist3d);