Update to latest ZXing C++ wrapper

Which adds a ContentType so we can distinguish between text
and binary content.

app/build.gradle

@@ -66,5 +66,5 @@ dependencies {
 	implementation "com.android.support:preference-v14:$support_version"
 	implementation 'com.github.markusfisch:CameraView:1.9.1'
 	implementation 'com.github.markusfisch:ScalingImageView:1.4.0'
-	implementation 'com.github.markusfisch:zxing-cpp:v1.4.0.2'
+	implementation 'com.github.markusfisch:zxing-cpp:v1.4.0.3'
 }

app/src/main/kotlin/de/markusfisch/android/binaryeye/activity/CameraActivity.kt

@@ -621,6 +621,7 @@ fun Result.redact() = if (
 ) {
 	Result(
 		format,
+		contentType,
 		String(
 			text.toByteArray(Charset.forName("ISO-8859-1")),
 			Charset.forName("UTF-8")

app/src/main/kotlin/de/markusfisch/android/binaryeye/app/Data.kt

@@ -5,9 +5,6 @@ import android.os.Build
 import java.io.UnsupportedEncodingException
 import java.net.URLEncoder
 
-private val nonPrintable = "[\\x00-\\x08\\x0e-\\x1f]".toRegex()
-fun String.hasNonPrintableCharacters() = nonPrintable.containsMatchIn(this)
-
 private val nonAlNum = "[^a-zA-Z0-9]".toRegex()
 private val multipleDots = "[…]+".toRegex()
 fun String.foldNonAlNum() = replace(nonAlNum, "…")

app/src/main/kotlin/de/markusfisch/android/binaryeye/database/Scan.kt

@@ -3,7 +3,7 @@ package de.markusfisch.android.binaryeye.database
 import android.os.Parcel
 import android.os.Parcelable
 import android.text.format.DateFormat
-import de.markusfisch.android.binaryeye.app.hasNonPrintableCharacters
+import de.markusfisch.android.zxingcpp.ZxingCpp.ContentType
 import de.markusfisch.android.zxingcpp.ZxingCpp.Result
 
 data class Scan(
@@ -145,12 +145,15 @@ private fun Parcel.readSizedByteArray(): ByteArray? {
 fun Result.toScan(): Scan {
 	val content: String
 	val raw: ByteArray?
-	if (text.hasNonPrintableCharacters()) {
-		content = ""
-		raw = rawBytes
-	} else {
-		content = text
-		raw = null
+	when (contentType) {
+		ContentType.TEXT -> {
+			content = text
+			raw = null
+		}
+		else -> {
+			content = ""
+			raw = rawBytes
+		}
 	}
 	return Scan(
 		content,