fix: [stix export] Faster & Shorter attributes dictionary creation function
fix: [stix export] Faster & Shorter attributes dictionary creation function

SteveClement/MISP,MISP/MISP,Rafiot/MISP,Rafiot/MISP,FloatingGhost/MISP,Rafiot/MISP,FIRSTdotorg/MISP,MISP/MISP,Rafiot/MISP,FIRSTdotorg/MISP,FIRSTdotorg/MISP,FIRSTdotorg/MISP,MISP/MISP,SteveClement/MISP,SteveClement/MISP,SteveClement/MISP,FloatingGhost/MISP,FloatingGhost/MISP,MISP/MISP,SteveClement/MISP,MISP/MISP,FloatingGhost/MISP