abdrive360/servo360 - try EEPROM calibration / transfer function adjusting functions

[AndyLindsay]

This could greatly simplify solving these two issues:

• servo360 - ActivityBots with similarly asymmetric zero speed deadband not meeting navigation goals
• servo360 - ActivityBots fishtails in transitions out of turns at high speeds

The drawback is going to be getting everyone in the habit of doing this for the ActivityBot.

[AndyLindsay]

Transfer function adjustment functions added in servo360 - try increasing start pulse duration.

[AndyLindsay]

Deterimine calibration values for #151

This project:

Find upper and lower Zero Speed Cutoff Pulse Durations.side

...determines the calibration values.

Next steps:

• [ ] Store to EEPROM
• [ ] Retrieve with abdrive360
• [ ] configure the servo360 instances.

[AndyLindsay]

abdrive360/servo360 - try EEPROM calibration / transfer function adjusting functions #151

Add:

abcalibrate360.h cal_clear() cal_displayResults() cal_displayData() cal_activityBot()

servo360.h int servo360_setTransferFunction(int pin, int constant, int value)

abdrive360.h void drive_encoderPins(int encPinLeft, int encPinRight) void drive_servoPins(int servoPinLeft, int servoPinRight)