(ui): add user notification in SGetMesh, SGetCamera if extraction doesn't work properly
Description
When a Mesh or a Camera is extracted through the SGetMesh or SGetCamera, if the information specified in the xml are not coherent with the one in the series, a sight exception is thrown. Although sight throw exception is interesting as it allows nice Unit test, it doesn't provide any feedback to the user in the GUI. If a user loads a SeriesDB, and the template is not the one of the xml, nothing happens, and the user doesn't know that the data weren't loaded properly.
Maybe you could add a dialog here to notify that something went wrong?
Proposal
Add a dialog to notify that the index/type is not found and that the data is not correctly formatted.