gui: Changed the PointSelectOverlay in such a way, that a new pixel will only be selected when the mouse button is released and the mouse has not moved. This way, users can still move through the image data, without selecting a new pixel every time they do so.
gui: Extracted a new superclass ViewPort from MicroscopeViewPort and added the ability to swap viewports in the ViewportController
Merge branch 'master' of delmic-server.local:odemis
andorcam3: reorder settings

might sligtly make more sense
Merge branch 'master' of vpn.delmic.com:odemis