Add generated public key for Wireguard in the GUI

[boblapo]

Hi

Feature request.

Wireguard can't be setup just using the GUI.
from ssh:

umask 077
wg genkey | tee privatekey | wg pubkey > publickey
# priv key to put in the wireguard gui
cat privatekey
# pub key to put in the peer's config -most important key to show-
cat publickey
wg show
/etc/init.d/S42wireguard stop
/etc/init.d/S42wireguard start

If you can add a key generator button for the private key (not needed on the GUI) then show the associated public key in the interface, that will be wonderful.

Optional: PSK generator (to help if the peering device don't have one)

thanks !