Auto-reenable of estop system when Disengage button pulled out too fast.

[Cryptum169]

System re-enables itself as motor controller keeps high charge, capacitance and resistance that prevents estop logic voltage from dropping.

Adding a relay between [Solenoid] <-> [Motor 24V] <-> [Relay] junction fixes this. This is verified through manual disconnection.

[Cryptum169]

This has been implemented through the extra relay on the robot and verified/