qttools: make qtwebkit a PACKAGECONFIG and disable by default

Signed-off-by: Andreas Müller <schnitzeltony@googlemail.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
libconnman-qt5: initial recipe of libconnman-qt for Qt5

Signed-off-by: Andreas Oberritter <obi@opendreambox.org>