Enable QML testing from python

Hi,

It's actually possible to run qml TestCase from c+. It enables using C+ context and custom C++ class.

It's not possible now in python. It's a major issue (I think) since you can test your python code on a side, qml code on another side (via qmltestrunner) but you can"t do both together to reproduce the real behavior of the app.

I didn't called this request "enable qmltestrunner from python" because I think testing should cover another point :

I think testing  python and qml together would be very cool If we had a clean api to manipulaite qml from python (and not this QQProperty.read() thing). something like that :

RootObject.mylistview.onMyPropertyChanged()

REgards
Jimmy