Node::addComponent would call excessive scheduleUpdate when adding multiple components

[stephenhurry]

• cocos2d-x version: 3.16

bool Node::addComponent(Component *component)
{
    // lazy alloc
    if (!_componentContainer)
        _componentContainer = new (std::nothrow) ComponentContainer(this);

    // should enable schedule update, then all components can receive this call back
    scheduleUpdate();

    return _componentContainer->add(component);
}

The scheduleUpdate should be called once only, subsequent calling it would lead to a warning from Scheduler. So the snippet should be corrected as:

bool Node::addComponent(Component *component)
{
    // lazy alloc
    if (!_componentContainer)
    {
        _componentContainer = new (std::nothrow) ComponentContainer(this);

        // should enable schedule update, then all components can receive this call back
        scheduleUpdate();
    }

    return _componentContainer->add(component);
}

[Dimon4eg]

You can send PR with fix