Add PlayerDeathEvent#getPlayer for clarity (#6859)

Author: HexedHero

patches/api/0149-Improve-death-events.patch

@@ -179,3 +179,25 @@ index a5984ab06cce95d30e70511e125f69339b574c04..e19a3df9aa2204b44c0b029bda141ae6
 +    }
 +    // 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 a01d4c21bedc7f1a54f5a330bb4c2909ce3a18e4..48f272747b8d5ab43f79a9d474713aca79f121b7 100644
+--- a/src/main/java/org/bukkit/event/entity/PlayerDeathEvent.java
++++ b/src/main/java/org/bukkit/event/entity/PlayerDeathEvent.java
+@@ -63,6 +63,17 @@ 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.
+      *