keys: do not send the text event of the toggleconsole bind to the console.

keys: do not send the text event of the toggleconsole bind to the console.

This only affects SDL2's event handling, which sends events in the following order:

(keycode, 0, true)
(0, charcode, true)
(0, charcode, false)
(keycode, 0, false)

The input destination is toggled on the first event, and the console then would
receive the charcode events. Binds work differently though - their action is
queued into the console buffer, and executed at the end of the frame!

git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@12305 d7cf8633-e32d-0410-b094-e92efae38249