[NRY] IR API Update

* Adds a test suite.
* Removes `setListening` function from API because it was error prone when used with EventEmitter.
* Adds ability to update IR Firmware using `avr-isp`.

Still need to do:
* Update API to not be in terms of 50uS ticks, but rather in terms of actual uS
* Fix an issue with the CRC being returned as 0s after an update.