add: [stix1 export] Supporting specific framing for attributes collections export
add: [stix1 export] Supporting specific framing for attributes collections export

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