Changes to Create Agent

added the optional property avg_call_duration to the response with the 201 status

added the optional property calls_today to the response with the 201 status

added the optional property conversion_rate to the response with the 201 status

added the required property status to the response with the 201 status

removed the request property campaign_id

removed the optional property campaign_id from the response with the 201 status

removed the optional property campaign_name from the response with the 201 status

added the new optional request property use_case_id

added the optional property use_case_id to the response with the 201 status

added the optional property use_case_name to the response with the 201 status