This commit adds a class based on QGraphicsSimpleTextItem that
handls animations via animatedHide() animatedMoveTo() and a few
other QPropertyes. This is to be used in conjunction with the
DiveLineItem added in the past commit on the Coordinate Axis.
Signed-off-by: Tomaz Canabrava <tcanabrava@kde.org>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>