gweimer/servo

Enhanced servo implementations to detach servo and allow it to free-wheel (or allow other nodes to control the servo)
NodeDescription
servo-enable
Standard servo node with Enable pin added. Detach servo when En is false and allow to free-wheel (or allow other node to control the servo).
servo-pulse
Merge servo and delay nodes to activate servo just long enough to move to new position based on previous position. Detach servo when timer is done.