Separate State vs Overrides

[slominskir]

Consider having separate state of Active vs Normal as that's usually the most important thing. Whether an Override is being used is a separate secondary concern. Currently there is a single enum that does both simultaneously, requiring clients to parse to figure out Active vs Normal:

https://github.com/JeffersonLab/jaws-libp/blob/22fe5ed50483df574be2447bab418e8e450c475e/src/jaws_libp/avro/schemas/EffectiveNotification.avsc#L22-L24