* switch to composer for qrcode and otp dependencies

* move most OTP-related stuff into userhelper
* remove old phpqrcode and otphp libraries

vendor/chillerlan/php-qrcode/src/QROptions.php

@@ -0,0 +1,61 @@
+<?php
+/**
+ * Class QROptions
+ *
+ * @filesource   QROptions.php
+ * @created      08.12.2015
+ * @package      chillerlan\QRCode
+ * @author       Smiley <smiley@chillerlan.net>
+ * @copyright    2015 Smiley
+ * @license      MIT
+ */
+
+namespace chillerlan\QRCode;
+
+use chillerlan\Settings\SettingsContainerAbstract;
+
+/**
+ * @property int    $version
+ * @property int    $versionMin
+ * @property int    $versionMax
+ * @property int    $eccLevel
+ * @property int    $maskPattern
+ * @property bool   $addQuietzone
+ * @property bool   $quietzoneSize
+ *
+ * @property string $dataMode
+ * @property string $outputType
+ * @property string $outputInterface
+ * @property string $cachefile
+ *
+ * @property string $eol
+ * @property int    $scale
+ *
+ * @property string $cssClass
+ * @property string $svgOpacity
+ * @property string $svgDefs
+ * @property int    $svgViewBoxSize
+ *
+ * @property string $textDark
+ * @property string $textLight
+ *
+ * @property string $markupDark
+ * @property string $markupLight
+ *
+ * @property bool   $returnResource
+ * @property bool   $imageBase64
+ * @property bool   $imageTransparent
+ * @property array  $imageTransparencyBG
+ * @property int    $pngCompression
+ * @property int    $jpegQuality
+ *
+ * @property string $imagickFormat
+ * @property string $imagickBG
+ *
+ * @property string $fpdfMeasureUnit
+ *
+ * @property array  $moduleValues
+ */
+class QROptions extends SettingsContainerAbstract{
+	use QROptionsTrait;
+}