Enable ssh login via web UI

src/freedombone-image-customise

src/freedombone-installer

src/freedombone-utils-ssh

webadmin/EN/settings.html

webadmin/EN/settings_onion.html

webadmin/EN/ssh.html

webadmin/EN/ssh_disabled.html

webadmin/EN/ssh_enabled.html

webadmin/EN/ssh_no_public_key.html

webadmin/images/ssh.png

webadmin/ssh.php