Update CONTRIBUTORS.md.
Update CONTRIBUTORS.md.
kaphacius/QRCodeReader.swift,korgx9/QRCodeReader.swift,korgx9/QRCodeReader.swift,cnbin/QRCodeReader.swift,kaphacius/QRCodeReader.swift,yannickl/QRCodeReader.swift,yannickl/QRCodeReader.swift,cnbin/QRCodeReader.swift