= SFP+ support for PTP-core

Main goals:
 - Monitor health of transcier
 - Enhanced calibration for improved time accuracy

Means:
 - Read out of additional Digital Diagnostic ADC values
 - Storing of additional delays in the EEPROM of the SFP transceiver

  
== Monitoring of health of transceiver

 - Reading of voltage / current of transceiver
 - Reading of temperature
 - Reading of the RX-ed power

Monitoring information must be send and stored in an external server

== Enhanced calibration for improved time accuracy

Additional EEPROM calibration parameter storage:
 - Transceiver nominal RX and TX delays
 - Optical power delay curve (induced by amplifier)
 - Also: Version, Date and UID

