Remove deprecated / deleted methods and use ExpandedPyMISP to catch up the latest PyMISP.
2. Grouping attributes by a reference link
Current MISP operator implementation creates an event per an attribute.
IMO it's useful to create an event per a reference link. It means that if there is an event which has the same reference link, add an attribute(artifact) to that event.
This PR contains two changes in MISP operator.
1. Catching up to the latest PyMISP.
Remove deprecated / deleted methods and use
ExpandedPyMISP
to catch up the latest PyMISP.2. Grouping attributes by a reference link
Current MISP operator implementation creates an event per an attribute. IMO it's useful to create an event per a reference link. It means that if there is an event which has the same reference link, add an attribute(artifact) to that event.