This change gives Qukeys the ability to repeat a primary keycode by
tapping the key, then immediately pressing and holding it. While doing
this, the extra release and press of the key are suppressed, so it
looks to the host just like a simple press-and-hold event, which is
particularly nice for users of macOS apps that use Cocoa, where
holding letter keys is the "standard" way of accessing accented
characters.
Signed-off-by: Michael Richters <gedankenexperimenter@gmail.com>