Changes to List maintenance plans

added the optional property maintenancePlans/items/meterGenerationDueOffset to the response with the 200 status

added the optional property maintenancePlans/items/meterGenerationStartOffset to the response with the 200 status

added the optional property maintenancePlans/items/meterHorizonValue to the response with the 200 status

added the optional property maintenancePlans/items/meterId to the response with the 200 status

added the optional property maintenancePlans/items/meterIntervalValue to the response with the 200 status

added the optional property maintenancePlans/items/meterNextDueValue to the response with the 200 status

added the optional property maintenancePlans/items/meterTriggerCondition to the response with the 200 status

the response property nextCursor became required for the status 200

the response property nextPageUrl became required for the status 200

added subschema #5: Periodically to the maintenancePlans/items/recurrence response property oneOf list for the response status 200

endpoint added