Enums.NmeaAccuracyType enumeration

The NmeaAccuracyType can be one of:

Constant	Description
`Enums.NmeaAccuracyTypeGst`	`(0)` An accuracy calculated from GST (pseudo-range error statistics) message.
`Enums.NmeaAccuracyTypeGsa`	`(1)` An accuracy calculated from GSA (DOP and active satellites) message.
`Enums.NmeaAccuracyTypeGga`	`(2)` An accuracy calculated from GGA (time, position, and fix-related data) message.