wip: [stix2 import] Cleaner pattern import into objects
wip: [stix2 import] Cleaner pattern import into objects

MISP/MISP,MISP/MISP,MISP/MISP,SteveClement/MISP,MISP/MISP,MISP/MISP,SteveClement/MISP,SteveClement/MISP,SteveClement/MISP,SteveClement/MISP