chg: [stix1 export] Updated object attributes parsing functions
chg: [stix1 export] Updated object attributes parsing functions

FIRSTdotorg/MISP,FIRSTdotorg/MISP,FloatingGhost/MISP,MISP/MISP,FloatingGhost/MISP,FIRSTdotorg/MISP,MISP/MISP,SteveClement/MISP,devnull-/MISP,SteveClement/MISP,Rafiot/MISP,MISP/MISP,devnull-/MISP,Rafiot/MISP,devnull-/MISP,FloatingGhost/MISP,MISP/MISP,FIRSTdotorg/MISP,SteveClement/MISP,Rafiot/MISP,SteveClement/MISP,FloatingGhost/MISP,SteveClement/MISP,Rafiot/MISP,devnull-/MISP,MISP/MISP