QVarLengthArray: Add move constructor and move assignement operator

Hi dear all,
Would it be possible to add move constructor and move assignement operator to qVarLengthArray as it is already done for QVector?

I join the piece of code that I add to my own 5.3.0 version and that I tested.

More generally, std::vector now overloads operations such as insertion using move semantics. Is it planned to do the same for Qt containers?

Thanks a lot for all the stuff that you do, it is so great!

Cheers,

Thibaud.