Export trait `HandleMessage` (#14644)

* Export HandleMessage

Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

* Also export EnqueueWithOrigin as state in the MR desciption

lol...

Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

---------

Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

substrate/frame/support/src/traits.rs

@@ -111,8 +111,9 @@ pub use preimages::{Bounded, BoundedInline, FetchResult, Hash, QueryPreimage, St
 
 mod messages;
 pub use messages::{
-	EnqueueMessage, ExecuteOverweightError, Footprint, NoopServiceQueues, ProcessMessage,
-	ProcessMessageError, QueuePausedQuery, ServiceQueues, TransformOrigin,
+	EnqueueMessage, EnqueueWithOrigin, ExecuteOverweightError, Footprint, HandleMessage,
+	NoopServiceQueues, ProcessMessage, ProcessMessageError, QueuePausedQuery, ServiceQueues,
+	TransformOrigin,
 };
 
 #[cfg(feature = "try-runtime")]