EspWifi: setting the client hostname

[dwery]

It looks like it's not possible to reach the set_hostname method. Not sure if it's intended, but it would be useful as it's supposedly used to send out the hostname in DHCP requests (currently defaults to "espressif").

 wifi.wifi().sta_netif().set_hostname("foobar");

error[E0624]: method set_hostname is private

[ivmarkov]

Since this question recently comes every other day: https://github.com/esp-rs/esp-idf-svc/blob/master/examples/wifi_dhcp_with_hostname.rs

[dwery]

@ivmarkov That was unexpected, thank you!