phd2 loses calibration EKOS

Save loadsa time.

Calibrate near the intersection of the meridian and equator and set PHD2 to:

Auto restore calibration

In INDI-EKOS, we do not want to:
 Reset Guide Calibration After Each Slew

 ...and if you're using the internal guider you do want to:

 Store and reuse guide calibration when possible