Features and events

[PBoissier]

When editing or modifying an event, it would be useful to limit the list of available features.
For example, the OVPF only uses the 'measure' and 'data_collection' features for discipline NODES events (seismology, geodesy, etc.). But these NODES have an additional 'sensor' feature (for calibration file and PROC association).
To prevent users from entering 'sensor' as a feature in the event form, it might be useful to hide it.
One could then imagine a blacklist or a whitelist in a configuration file for this.