Changes to Get Overall values

added the new enum value rendition_change_count to the path request parameter METRIC_ID

added the new enum value rendition_downshift_count to the path request parameter METRIC_ID

added the new enum value rendition_upshift_count to the path request parameter METRIC_ID

the endpoint scheme security authorizationToken was added to the API

the endpoint scheme security accessToken was added to the API

removed the enum value ad_watch_time from the path request parameter METRIC_ID

removed the enum value view_content_watch_time from the path request parameter METRIC_ID

added the new enum value view_dropped_percentage to the path request parameter METRIC_ID