Boilerplate code for Vault Door

Server/src/main/java/net/simon987/server/game/Enterable.java

@@ -0,0 +1,13 @@
+package net.simon987.server.game;
+
+public interface Enterable {
+
+    /**
+     * Called when an object attempts to walk directly into a Enterable object
+     *
+     * @param object The game object that attempted to enter
+     * @return true if successful,
+     */
+    boolean enter(GameObject object);
+
+}