WEP is a highly flawed cryptosystem, barely better than no encryption at all,
but many people still use it. It does have the advantage of being very simple
and small in code size.

Signed-off-by: Marty Connor <mdc@etherboot.org>

Add commands `iwstat' (to list 802.11-specific status information for
802.11 devices) and `iwlist' (to scan for available networks and print
a list along with security information).

Signed-off-by: Marty Connor <mdc@etherboot.org>