barcode_scan2 4.0.0+6

A flutter plugin for scanning 2D barcodes and QRCodes via camera.

4.0.0

• Original barcode_scan was discontinued, so barcode_scan2 was borned with sound null safety support🎉

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Prior to 3.0.1, see the CHANGELOG of discontinued original package: https://pub.dev/packages/barcode_scan/changelog