RunState enums serialization differs between json4s and jackson.databind

[dk1844]

Problem definition

When Json4s serialization is used on enum within Atum, their toString representation is used (JSON looks like enums were strings), e.g.:

    "runState": "allSucceeded",

On the other hand, when this model is used as-is for serialization with fasterxml.jackson.databind, the following JSON is yielded:

  "runState": {
    "enumClass": "za.co.absa.atum.model.RunState", 
    "value": "allSucceeded"
},

It may be worth finding a way to unify the JSON results.

Solution suggestions

1. provide the model with fasterxml.jackson.databind annotations so that it can be leveraged when imported (e.g. in Enceladus, case in point.)