Add process in sensorML for modeling the calibration
Currently the information about the calibration is qutie poor. In the discussion with @rainer.haener we found that we can model the process of the calibration as a process in sensorML (inside of the components list) and we can add a connection to associate systems & processes.
That way we can include all the other needed information (formula & value) for the calibration.
(The current value for the calibation is included in a classifier - which is honestly not the intended use in sensorML).
However, for the moment we didn't find a proper solution to bind this process (or its connection) to the calibration event itself.