[FEATURE] enhance readability of dataExtension retention policy

[JoernBerkefeld]

the retention type should be directly readable as a value instead of having to understand the combination of values.

DataRetentionPeriodUnitOfMeasure:

ID	Name	Comment
1	Minutes	not selectable in UI - to be tested!
2	Hours	not selectable in UI - to be tested!
3	Days
4	Weeks
5	Months
6	Years

RetainUntil:
Currently that's in US datetime format but you can only set days to begin with. Should be converted into the more universal YYYY-MM-DD format!

samples:

none:

// before:
{
    "RowBasedRetention": false,
    "ResetRetentionPeriodOnImport": false,
    "DeleteAtEndOfRetentionPeriod": false,
    "RetainUntil": "",
}

// after
{
    "c__retentionType": "none",
}

allRecordsAndDataextension:

// before:
{
    "DataRetentionPeriodLength": 6,
    "DataRetentionPeriodUnitOfMeasure": 3,
    "RowBasedRetention": false,
    "ResetRetentionPeriodOnImport": false,
    "DeleteAtEndOfRetentionPeriod": false,
    "RetainUntil": "5/9/2024 12:00:00 AM",
}

// after
{
    "c__retentionType": "allRecordsAndDataextension",
    "DataRetentionPeriodLength": 6,
    "c__dataRetentionPeriodUnitOfMeasure": 'Days',
//  "RowBasedRetention": false,
    "ResetRetentionPeriodOnImport": false,
//  "DeleteAtEndOfRetentionPeriod": false,
    "c__retainUntil": "2024-05-09",
}

individialRecords:

// before
{
    "DataRetentionPeriodLength": 6,
    "DataRetentionPeriodUnitOfMeasure": 3,
    "RowBasedRetention": true,
    "ResetRetentionPeriodOnImport": false,
    "DeleteAtEndOfRetentionPeriod": false,
    "RetainUntil": "",
}

// after
{
    "c__retentionType": "individialRecords",
    "DataRetentionPeriodLength": 6,
    "c__DataRetentionPeriodUnitOfMeasure": 'Days',
//    "RowBasedRetention": true,
    "ResetRetentionPeriodOnImport": false,
//    "DeleteAtEndOfRetentionPeriod": false,
//    "RetainUntil": "",
}

allRecords:

// before
{
    "DataRetentionPeriodLength": 6,
    "DataRetentionPeriodUnitOfMeasure": 3,
    "RowBasedRetention": false,
    "ResetRetentionPeriodOnImport": false,
    "DeleteAtEndOfRetentionPeriod": true,
    "RetainUntil": "5/9/2024 12:00:00 AM",
}

// after
{
    "c__retentionType": "allRecords",
    "DataRetentionPeriodLength": 6,
    "c__DataRetentionPeriodUnitOfMeasure": 'Days',
//    "RowBasedRetention": false,
    "ResetRetentionPeriodOnImport": false,
//    "DeleteAtEndOfRetentionPeriod": true,
    "c__retainUntil": "2024-05-09",
}

allRecords and resetOnImport: (like allRecords!)

{
    "c__retentionType": "allRecords",
    "DataRetentionPeriodLength": 6,
    "c__DataRetentionPeriodUnitOfMeasure": 'Days',
//    "RowBasedRetention": false,
    "ResetRetentionPeriodOnImport": true,
//    "DeleteAtEndOfRetentionPeriod": true,
    "c__retainUntil": "2024-05-09",
}

[github-actions]

Closed by #1295.