Adding support for the Micro Switch 8304 Hall Effect Keyboard

- Full support (NKRO, provided the USB module can handle it)
- Full LED support (available to the macro modules per input signals)
- Reset/Hold line support
- Handles repeat rate issues (keyboard does not send key updates as most
  keyboards do...)

main.c

@@ -146,6 +146,7 @@ int main(void)
 	}
 }
 
+// USB Keyboard Data Send Counter Interrupt
 ISR( TIMER0_OVF_vect )
 {
 	sendKeypressCounter++;