fix: [stix export] Exporting malware-sample value within the corresponding observable
fix: [stix export] Exporting malware-sample value within the corresponding observable

- In case the malware-sample values are not the
  same as the filename & md5 ones in the object

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