Removal of an attribute from QuestionSet schema

[githubpiyush]

@krgauraw

Currently we have an attribute called ecm in core QuestionSet schema with type array. This works when we wanted to store ECM values in this attribute but as per our latest discussion now we want to store ECM information in primary category definition of observation with rubrics with type as object in which keys will be the UUID and values will be ECM property name. The structure is given below :-

RootQuestionSet:{                            //Observation with rubrics Root QuestionSet
        "ecm": {
            "22f8936c-4ebb-11ed-bdc3-0242ac120002": "ECM_1",            //ECM UUID and property name
            "22f88e1c-4ebb-11ed-bdc3-0242ac120002": "ECM_2",            //ECM UUID and property name
        }
 }

ecm attribute is already present in core QuestionSet schema, and we want to remove this attribute from QuestionSet schema and add that attribute to primary category definition of observation with rubrics with new type.

Can you provide us what steps we need to take in order to achieve this?

CC :- @aks30 @joffinjoy @kiranharidas187 @pradeepkumarcm96 @pallakartheekreddy @MaheshKulkarniTekdi
@vinukumar-vs @AmiableAnil