Add a function to parse a CLAP event

src/common/serialization/clap/events.h

@@ -268,6 +268,12 @@ struct Midi2 {
  * reconstructed back to a `clap_event_header`.
  */
 struct alignas(16) Event {
+    /**
+     * Parse a CLAP event. Returns a nullopt if yabridge does not support the
+     * event.
+     */
+    static std::optional<Event> parse(const clap_event_header_t& generic_event);
+
     /**
      * The time from the event header.
      */