Make the samegame demo use qt_add_qml_module instead of qt_add_resources.
This populates build/qtdoc/examples/demos/samegame/SameGameModule
instead of build/qtdoc/examples/demos/samegame/content because content
is a bad QML module name ™️.
Use qt_standard_project_setup().
Use QQuickView::loadFromModule() in the main.cpp and add a qmldir in the
.qrc to make loadFromModule() work when using qmake.
Pick-to: 6.8
Task-number: QTBUG-100100
Change-Id: I23e197c99ff284f62fa9deae12afe9ddbd510861
Reviewed-by: Axel Spoerl <axel.spoerl@qt.io>