Selects the first node that succeeds. Tries successive nodes until it finds one that doesn't fail.
Inheritance: IParentBehaviourTreeNode
        /// <summary>
        /// Create a selector node.
        /// </summary>
        public BehaviourTreeBuilder Selector(string name)
        {
            var selectorNode = new SelectorNode(name);

            if (parentNodeStack.Count > 0)
            {
                parentNodeStack.Peek().AddChild(selectorNode);
            }

            parentNodeStack.Push(selectorNode);
            return this;
        }
 void Init()
 {
     testObject = new SelectorNode("some-selector");
 }