Update CDVbcsProcessor for #312
Update CDVbcsProcessor for #312

Changed CDVbcsProcessor to use AVCaptureMetadataOutputDelegate instead of SampleBuffer and zxing to resolve iOS 10 memory leak issue.
Keyoniq/phonegap-plugin-barcodescanner,Keyoniq/phonegap-plugin-barcodescanner,sovanta/phonegap-plugin-barcodescanner-custom-ui,sovanta/phonegap-plugin-barcodescanner-custom-ui,Keyoniq/phonegap-plugin-barcodescanner,sovanta/phonegap-plugin-barcodescanner-custom-ui,sovanta/phonegap-plugin-barcodescanner-custom-ui,sovanta/phonegap-plugin-barcodescanner-custom-ui,Keyoniq/phonegap-plugin-barcodescanner,Keyoniq/phonegap-plugin-barcodescanner