[FEATURE] setting wifi subnet mask in core-pygui

[gh0st42]

Is your feature request related to a problem? Please describe.

In the old core-gui it was very easy to change the subnet mask for different basic WiFis, e.g., from /32 to /24 (see attached screenshot - the link to all routers button was also super useful :)).

The new core-pygui defaults to /32 networks and there does not seem to be an easy way to change IP range or subnet masks.

Describe the solution you'd like

A simple per-wifi dialog to set IP range and subnet mask.

[bharnden]

will take note of this for future adds, thanks