Change log for AZURE_AD

Date Changes
2022-05-29 Enhancement - Modified the for loop for the field 'riskEventTypes_v2' mapped to 'additional.fields'.
Mapped the field 'level' to 'security_result.severity_details'.
Mapped the field 'properties.result' to 'security_result.action_details'.
2022-04-20 Bug-fix - Parsed the logs with event "appDisplayName": "NotApplicable".
- Modified the for loop for the field 'riskEventTypes'.