Add PlayerDeathEvent#getPlayer for clarity (#6859)

patches/api/Improve-death-events.patch

@@ -179,3 +179,25 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +    }
 +    // Paper end
  }
+diff --git a/src/main/java/org/bukkit/event/entity/PlayerDeathEvent.java b/src/main/java/org/bukkit/event/entity/PlayerDeathEvent.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/event/entity/PlayerDeathEvent.java
++++ b/src/main/java/org/bukkit/event/entity/PlayerDeathEvent.java
+@@ -0,0 +0,0 @@ public class PlayerDeathEvent extends EntityDeathEvent {
+     }
+ 
+     // Paper start
++    /**
++     * Clarity method for getting the player. Not really needed except
++     * for reasons of clarity.
++     * 
++     * @return Player who is involved in this event
++     */
++    @NotNull
++    public Player getPlayer() {
++        return getEntity();
++    }
++
+     /**
+      * Set the death message that will appear to everyone on the server.
+      *