Add a FreeBSD Host Access Points section to the wireless page.
Without encryption, WPA-PSK and WEP APs are covered.
Instructions for EAP-TLS, EAP-TTLS and EAP-PEAP based APs will be added
in future

With many useful remarks and help from: sam@ and thompsa@
Inspired from: Sam Banks <w0lfie@clear.net.nz> and loader@
contributions