Use gyro and ultrasonic eyes

[josephburnett]

Currently the software cannot use the gyro and ultrasonic eyes at the same time.

https://github.com/PetoiCamp/OpenCat/blob/902c3192224833202c429f59df9678b60d838989/OpenCat.ino#L55

Is this a software limitation (making the compiled code smaller) or a hardware limitation (not enough registers)? I am interested in improving the code to have both working at the same time.