NetworkSetup: Build fix. max vs max_c

* max can only be used in C apps.
  C++ apps use max_c
NetworkSetup: Spelling: Wirless -> Wireless
NetworkSetup: Cleanup headers; No functional change
NetworkSetup: Add stats and wifi network name

* Add ability for fSettings to pass on network
  stats
* Show KB Sent / Received for interface
* Drop the wireless / wired tab name.
  (we are going to need another tab for wifi)
* Add wifi network name to connection field
  if interface is wifi.
Tiny style fix, thanks Axel
Add diagonal arrows to ControlLook DrawArrowShape() method
Animate the expander arrow

On MouseDown draw a diagonal arrow, on MouseUp complete the animation and
expand. If you hold down the button it will stay diagonal until you MouseUp
and either return to normal or animate and expand if over the arrow.

Reformatted ExpandoMenuBar.h and TeamMenuItem.h
Renamed fLastClickItem to fLastClickedItem
Added a DrawExpanderArrow() method
Renamed private InitData() method to _InitData() and moved it to the bottom
Fix a crash bug I introduced to Deskbar last commit

Need to set fLastClickedItem to NULL so it doesn't point to a deleted item.
Sorry about that.