rename arg '--gui <toolkit>'
add a cloudflare example
fixes since go v1.21 didn't compile anymore due to argv order
more place() changes
recursive size computation
gocui: Major refactor to use the *node binary tree
gocui: refactor place() and size()
gocui: better place() and spacing (tab, buttons, etc)
gocui: better mouse click handling
gocui: switch to using tk.gocuiSize & tk.size
gocui: event handling cleanups
gocui: add window labels work
gocui: struct cleanups
gocui: duplicate binary tree structs removed
gocui: deprecate old children
Signed-off-by: Jeff Carr <jcarr@wit.com>
