Hotload for QML

In this second video, Christoph presents the technique of "Hot Reload" allowing for quicker turn-around times in embedded development using Qt/QML.

For this, 3 steps are necessary:

1. Add a mechanism (Loader + FileWatcher) inside QML that triggers a reload when a sourcecodefile changes.
2. Add a File-Watcher to detect when a file is saved on PC. This then triggers a synchronization to the embedded target source code folder.
3. Modify the QML Engine to clear the Component Cache on reload to make it work.

Thanks go to silgon on stackoverflow for the quick file-sync solution: https://stackoverflow.com/a/40525217/394218

Code shown in this video: https://github.com/KDAB/kdabtv/tree/master/Qt-Embedded-Cycletime/video2_hot_reload

The Loader element video from Jesper Pedersen https://www.youtube.com/watch?v=nteJeojg07k

QML Hot Reload: Felgo presents hot new feature https://www.youtube.com/watch?v=y0_RMWd3h9U

Qt DevCon talk: QML Hot Reload in Practice https://www.qtdevcon.com/qml-hot-reload-in-practice-how-to-use-qml-reload-to-improve-review-meetings-for-remote-teams/

All 'Reducing your Qt Embedded development cycle time' videos: https://www.youtube.com/playlist?list=PL6CJYn40gN6gUTZ9kAW7ocyjIVe5QbOUB

All 'Embedded with Qt' videos: https://www.youtube.com/playlist?list=PL6CJYn40gN6iVG059HBoLQZ1CMTyXCGpw