Qt: implemented OnMouseMove and OnPaint for TTrayIcon under X11. issue #23217


git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@46222 4005530d-fff6-0310-9dd1-cebe43e6787f
Qt: improved patch from revision 4622, added licence header into qtsystemtrayicon unit.issue #23217


git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@46223 4005530d-fff6-0310-9dd1-cebe43e6787f