DTC_EventMode can not be used for CFO Emulated Event Mode

[rrivera747]

The CFO Emulated event mode is treated as 6-bytes in hardware, because it must be able to fake the RF Marker TDC bits.

For DTC_EventMode to be more flexible it should be treated as 6-bytes, and the deliveryRingTDC_ could be interpreted from those 6 bytes.

[eflumerf]

@rrivera747 Is this still an issue with the DTCandCFO library? Please check and update

[rrivera747]

I think it is still an issue (the struct uses 40-bits only):
artdaq-core-mu2e/Overlays/DTC_Types/DTC_EventMode.h

[rrivera747]

https://github.com/Mu2e/artdaq_core_mu2e/blob/develop/artdaq-core-mu2e/Overlays/DTC_Types/DTC_EventMode.h#L14