feat: support multiple barcode format hints#43
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Add `hints: [OSBARCScannerHint]?` to OSBARCScanParameters as an additive companion to the existing single `hint`. When non-empty, `hints` takes precedence and the Vision request's `symbologies` is built from the de-duplicated union of mapped VNBarcodeSymbology values. `.unknown` anywhere in the list short-circuits to scan-all, matching the "ALL" sentinel behavior of single-hint mode. UPC-A/EAN-13 disambiguation extends naturally to the list path. Backward compatible: single-hint convenience init retained on the decoder; existing call sites unaffected.
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Adds
hints: [OSBARCScannerHint]?toOSBARCScanParametersas an additive companion to the existing singlehint. When non-empty,hintstakes precedence and the Vision request''ssymbologiesis built from the de-duplicated union of mappedVNBarcodeSymbologyvalues..unknownanywhere in the list short-circuits to scan-all, matching the "ALL" sentinel behavior of single-hint mode. UPC-A/EAN-13 disambiguation extends naturally to the list path.Backward compatible: single-hint convenience init retained on the decoder; existing call sites unaffected.