* 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/examples/image.php

@@ -0,0 +1,60 @@
+<?php
+/**
+ *
+ * @filesource   image.php
+ * @created      24.12.2017
+ * @author       Smiley <smiley@chillerlan.net>
+ * @copyright    2017 Smiley
+ * @license      MIT
+ */
+
+namespace chillerlan\QRCodeExamples;
+
+use chillerlan\QRCode\{QRCode, QROptions};
+
+require_once __DIR__.'/../vendor/autoload.php';
+
+$data = 'https://www.youtube.com/watch?v=DLzxrzFCyOs&t=43s';
+
+$options = new QROptions([
+	'version'      => 7,
+	'outputType'   => QRCode::OUTPUT_IMAGE_PNG,
+	'eccLevel'     => QRCode::ECC_L,
+	'scale'        => 5,
+	'imageBase64'  => false,
+	'moduleValues' => [
+		// finder
+		1536 => [0, 63, 255], // dark (true)
+		6    => [255, 255, 255], // light (false), white is the transparency color and is enabled by default
+		// alignment
+		2560 => [255, 0, 255],
+		10   => [255, 255, 255],
+		// timing
+		3072 => [255, 0, 0],
+		12   => [255, 255, 255],
+		// format
+		3584 => [67, 191, 84],
+		14   => [255, 255, 255],
+		// version
+		4096 => [62, 174, 190],
+		16   => [255, 255, 255],
+		// data
+		1024 => [0, 0, 0],
+		4    => [255, 255, 255],
+		// darkmodule
+		512  => [0, 0, 0],
+		// separator
+		8    => [255, 255, 255],
+		// quietzone
+		18   => [255, 255, 255],
+	],
+]);
+
+header('Content-type: image/png');
+
+echo (new QRCode($options))->render($data);
+
+
+
+
+