The JobScheduler schema has to be extended to allow calendar information to be stored with the configuration XML files

Current Situation
Currently information about the calendar configuration is stored only with the reporting database. Therefore some update processing cannot be done when JobScheduler objects using the calendar are changed in the file system.

Desired Behavior
In the configuration files for Orders, Jobs and Schedules a new item has to be introduced for the web services to store information (meta data) to be used by the JOC Cockpit and by the Inventory Plugin.

Entries as the following example should be storable with the configuration:

<calendars>
    <![CDATA[
      {"calendars": [
        {"basedOn":"/test/testcalendar1",
         "periods":[{"singleStart":"12:00:00","whenHoliday":"suppress"}],"includes":{"weekdays":[{"from":"2018-12-24","to":"2018-12-31","days":[0]}]}
        },
        {"basedOn":"/test/testcalendar2",
         "periods":[{"singleStart":"14:30:00","whenHoliday":"suppress"}],"includes":{"weekdays":[{"from":"2018-12-27","to":"2018-12-30","days":[0]}]}
        }]
      }
   ]]>
</calendars>