[Enhancement Suggestion] Change copper button delay to 5 (or 2) ticks.

[roboboredom]

Simply put, I think it would be a neat feature if the copper button was changed to only stay after pressed for 5 (or 2) ticks, instead of the 10-tick delay of the stone button, and the 15-tick delay of the wooden button. This would allow it to function as a prettier replacement for spamming a lever as fast as possible.