Deprecate spawnCreature and add spawnEntity. Addresses BUKKIT-1168

By: V10lator <v10lator@myway.de>

paper-api/src/main/java/org/bukkit/World.java

@@ -304,13 +304,24 @@ public interface World extends PluginMessageRecipient, Metadatable {
      */
     public boolean generateTree(Location loc, TreeType type, BlockChangeDelegate delegate);
 
+    /**
+     * Creates a entity at the given {@link Location}
+     *
+     * @param loc The location to spawn the entity
+     * @param type The entity to spawn
+     * @return Resulting Entity of this method, or null if it was unsuccessful
+     */
+    public Entity spawnEntity(Location loc, EntityType type);
+
     /**
      * Creates a creature at the given {@link Location}
      *
      * @param loc The location to spawn the creature
      * @param type The creature to spawn
      * @return Resulting LivingEntity of this method, or null if it was unsuccessful
+     * @deprecated Has issues spawning non LivingEntities. Use {@link #spawnEntity(Location, EntityType) spawnEntity} instead.
      */
+    @Deprecated
     public LivingEntity spawnCreature(Location loc, EntityType type);
 
     /**