In the "inspiration" for this game, messages are displayed on top of the
game area in case an invalid guess is inputted. After a few seconds,
they disappear. In a similar fashion, a statusbar is created on the game
window and similar messages are outputted there.
Otherwise, we end up propagating those dependencies into targets that
link against that library, which creates unnecessary link-time
dependencies.
Also included are changes to readd now missing dependencies to tools
that actually need them.
