Handle delete functions of resource catalog

[AndreaAvignone]

There is the possibility to delete a device with the specific http command. It is useful in testing phase, but it should be decided if keep it also for the final user. In general, the effects should be properly implemented. In fact, the sensor keep sending measurements, generating an error. Now, the catalog use try/except to neglect errors. Therefore, the sensor needs to be launched again for a new installation. In general, this function can be removed (using only removeInactive) or the catalog can return an error/warning or the sensor should be stopped.