[Development] Request moving project to playground area

[Hamed Masafi]

> To achieve this I think it's possible to use the property system + a custom subclass
> of QObject. If you watnt to expose this objects to QML you will need to declare a
> Q_PROPERTY, so It's not convenient.

Nut macro declare a static method to helping query writing as
descripted in github page, this also declare Q_PROPERTY, so for now
can not replace with anything else.