Resizingsegment

1.) Switched to the watershed of skimage, better for antennas and appendages.
2.) Resizing images to (5000, 5000) before main automatic segmentation. Slower for smaller images, but in cases such as scarab example the edges do not merge into another.
If we want a debug mode we should probably have that in the settings, enable it using a command line switch and output to a proper logger. I realise this is beyond the scope of this particular PR, so this is fine for now. But we should implement this.