Add option to have wifi not connect automatically

[arthurlutz]

I love that gameshell can connect to wifi to setup retroarch cores, and some games that get assets from the internet.

But I would really like having the option of not automatically connecting to wifi (power saving, privacy, only on a need-to-use basis). I would argue this could a be default, but I can understand that it isn't, so it would be nice to be able to configure that as an option for the gameshell, or even just by wifi setting (for example, auto connect at home, but manual connect at work).

[arthurlutz]

For anyone wanting this type of functionality, via ssh you can edit /etc/wicd/wireless-settings.conf to switch from automatic = 1 (default) to automatic = 0 (manual).

[arthurlutz]

Sorry the workaround about only works once, when you reconnect to that wifi through the launcher the configuration switched back to automatic = 1.