chg: [qrcode] various fixes to make it PEP compliant
chg: [qrcode] various fixes to make it PEP compliant

amuehlem/misp-modules,VirusTotal/misp-modules,MISP/misp-modules,MISP/misp-modules,amuehlem/misp-modules,VirusTotal/misp-modules,MISP/misp-modules,VirusTotal/misp-modules,amuehlem/misp-modules