[tests] cutes-core: QFile test

Signed-off-by: Denis Zalevskiy <denis.zalevskiy@jolla.com>
[qml] plugin is back

Signed-off-by: Denis Zalevskiy <denis.zalevskiy@jolla.com>
removing commented old code

Signed-off-by: Denis Zalevskiy <denis.zalevskiy@jolla.com>
ignore moc

Signed-off-by: Denis Zalevskiy <denis.zalevskiy@jolla.com>