Gitin 0.1.7 Location got picture

0.1.7: Location extended with picture field (imagefilename), pictures to be stored local.

I run it with just a little bit data in it, starts to become fun. Still have to adapt CLI to the changes. Should make a sample dataset.

Some previous steps:
0.1.6: Connection screen has possibility to add a given number of ports to a device (creates "nic" records)
0.1.5: NIC table and object added; with field to keep a fixed ip addres and label field for switch port number
Changed to gb.gui instead of gb.qt5 to be more backward compatible.
0.1.4: category added to devices (eg printer, monitor, server, pc, network)