Share wifi connection

The computer that uses the wifi extender can use its own built in wifi to serve as an access point so other can connect to the boat.

create_ap can be used for that: https://github.com/oblique/create_ap/blob/master/create_ap

then the command is the following one:

sudo create_ap pc_wifi extender_wifi wifi_SSID password

pc_wifi is the device interface (wlan0 for example), and extender_wifi is the extender one (wlan1 for example).

To identify name of device interface plug out WiFi extender and use iwconfig and see which interface disappeared.