* Fix extra keyboard report during test_fixture teardown
* Add tests for pressing two keys with only different modifers
* Fix#1708
When two keys that use the same keycode, but different modifiers were
pressed at the same time, the second keypress wasn't registered. This is
fixed by forcing a key release when we detect a new press for the same
keycode.
* Fix the NKRO version of is_key_pressed
* Fix uninitalized loop variable
Co-authored-by: Jack Humbert <jack.humb@gmail.com>
