Merge pull request #5 from MatrixAI/feature-default-fall-through

feat: introduce `EventAll` and `EventDefault`

Author: CMCDragonkai

README.md

@@ -54,15 +54,19 @@ x.addEventListener(EventCustom.name, (e) => {
   console.log(e as EventCustom);
 });
 
-// Handle any event
-x.addEventListener((e) => {
+// Handle unhandled events
+x.addEventListener(EventDefault.name, (e) => {
+  // This is the wrapped underlying event
+  console.log((e as EventDefault).detail);
+})
+
+// Handle all events
+x.addEventListener(EventAll.name, (e) => {
   // This is the wrapped underlying event
   console.log((e as EventAny).detail);
 })
 ```
 
-Note that all events pass through the any event handler, it is not a "fall through" handler.
-
 You can use this style to handle relevant events to perform side-effects, as well as propagate upwards irrelevant events.
 
 Note that some side-effects you perform may trigger an infinite loop by causing something to emit the specific event type that you are handling. In these cases you should specialise handling of those events with a `once: true`  option, so that they are only handled once.