feat(regions): move update method into region class to be more precis…

…e and easier to find (#163)

src/main/java/minevalley/core/api/regions/Region.java

@@ -43,7 +43,10 @@ public interface Region {
 
     /**
      * <b>Note:</b> This could be null!
+     *
      * @return the residence this region is connected to, if existing.
      */
     Residence getResidence();
+
+    void update(List<Area> included, List<Area> excluded);
 }