Add ClipboardEvent.java

src/main/java/me/goudham/listener/ClipboardEvent.java

@@ -0,0 +1,7 @@
+package me.goudham.listener;
+
+import me.goudham.model.MyClipboardContent;
+
+public interface ClipboardEvent {
+	<T> void onCopy(MyClipboardContent<T> copiedContent);
+}