add constructors for VmcExtT and VmcMessage contructor for VmcExtOk

src/lib.rs

@@ -236,6 +236,14 @@ impl VmcExtOk {
         }
         return Ok(VmcExtOk { loaded, calibration_state: None, calibration_mode: None, tracking_status: None})
     }
+    fn new_vmc_message(loaded: i32, calibration_state: Option<i32>, calibration_mode: Option<i32>, tracking_status: Option<i32>) -> Result<Box<dyn VmcMessage>, MessageCreationErr> {
+        let msg = Self::new(loaded, calibration_state, calibration_mode, tracking_status);
+        if msg.is_ok() {
+            let boxed_result: Box<dyn VmcMessage> = Box::new(msg.ok().unwrap());
+            return Ok(boxed_result);
+        }
+        return Err(msg.err().unwrap());
+    }
 }
 
 #[derive(Debug)]
@@ -267,6 +275,20 @@ impl VmcMessage for VmcExtT {
     }
 }
 
+impl VmcExtT {
+    fn new(time: f32) -> Result<Self, MessageCreationErr> {
+        return Ok(VmcExtT { time });
+    }
+    fn new_vmc_message(time: f32) -> Result<Box<dyn VmcMessage>, MessageCreationErr> {
+        let msg = Self::new(time);
+        if msg.is_ok() {
+            let boxed_result: Box<dyn VmcMessage> = Box::new(msg.ok().unwrap());
+            return Ok(boxed_result);
+        }
+        return Err(msg.err().unwrap());
+    }
+}
+
 #[derive(Debug)]
 struct VmcExtRootPos {
     name: String,