A new job state "ERROR" should be considered

Current Situation

• A job can have the state "error" in a JobScheduler answer.
• This state was not specified in the JOC API.
• This state is just introduced in every response which contains a job object such as ./job.
• If the job has the state="ERROR" then an error object with "code" and "message" is included too.
• see also JOC API ./job

Desired Behavior

• JOC Cockpit Gui should consider the new state "ERROR" of a job.
• JOC Cockpit Gui should read the error object if exist and should display the message in the same manner such the message in the "configurationStatus" object.