create constructors for VmcExtBonePos

src/lib.rs

@@ -517,6 +517,20 @@ impl VmcMessage for VmcExtBonePos {
     }
 }
 
+impl VmcExtBonePos {
+    fn new(name: String, transform: Transform3D) -> Result<Self, MessageCreationErr> {
+        return Ok(VmcExtBonePos{name, transform});
+    }
+    fn new_vmc_message(name: String, transform: Transform3D) -> Result<Box<dyn VmcMessage>, MessageCreationErr> {
+        let message = Self::new(name, transform);
+        if message.is_ok() {
+            let boxed_result: Box<dyn VmcMessage> = Box::new(message.ok().unwrap());
+            return Ok(boxed_result);
+        }
+        return Err(message.err().unwrap());
+    }
+}
+
 #[derive(Debug)]
 struct VmcExtBlendVal {
     name: String,