Proc macro preparation

simconnect-sdk/src/simconnect_object_ext.rs

@@ -0,0 +1,5 @@
+use crate::{NotificationData, SimConnect, SimConnectError};
+
+pub trait SimConnectObjectExt: Clone + for<'a> TryFrom<&'a NotificationData> {
+    fn register(client: &mut SimConnect, id: u32) -> Result<(), SimConnectError>;
+}