Add method to simplify settings updater

Author: Rubenicos

src/main/java/com/saicone/settings/update/SettingsUpdater.java

@@ -56,6 +56,16 @@ public SettingsUpdater(@Nullable List<NodeUpdate> nodeUpdates) {
         this.nodeUpdates = nodeUpdates;
     }
 
+    /**
+     * Update the given base node.
+     *
+     * @param base     the base node to apply updates into.
+     * @return         true if any update has been applied into base node.
+     */
+    public boolean update(@NotNull MapNode base) {
+        return update(base, null);
+    }
+
     /**
      * Update the given base node along with optional provider map node.
      *
@@ -104,4 +114,13 @@ public List<NodeUpdate> getNodeUpdates() {
         }
         return nodeUpdates;
     }
+
+    /**
+     * Add a node update to this instance.
+     *
+     * @param update the node update to add.
+     */
+    public void add(@NotNull NodeUpdate update) {
+        getNodeUpdates().add(update);
+    }
 }