Adds "Add QR" module (#736)

* Adds Add QR module

* Grunt build changes

* Rremoved copyPixels function and added test for QR module

* Resolved test fail issues

* Adds look same test

* Change default to get from info.json

src/modules/AddQR/Module.js

@@ -0,0 +1,51 @@
+module.exports = function AddQR(options, UI) {
+
+    var defaults = require('./../../util/getDefaults.js')(require('./info.json'));
+    options.size = options.size || defaults.size;
+    options.qrCodeString = options.qrCodeString || "https://github.com/publiclab/image-sequencer";
+    var output;
+    getPixels = require('get-pixels');
+
+    function draw(input, callback, progressObj) {
+
+        progressObj.stop(true);
+        progressObj.overrideFlag = true;
+
+        var step = this;
+
+        return getPixels(input.src, function (err, oldPixels) {
+            function changePixel(r, g, b, a) {
+                return [r, g, b, a];
+            }
+           
+            function extraManipulation(pixels,generateOutput) {
+                if (err) {
+                    console.log(err);
+                    return;
+                }
+                 require('./QR')(options, pixels, oldPixels, generateOutput);
+            }
+            function output(image, datauri, mimetype) {
+                step.output = { src: datauri, format: mimetype };
+            }
+
+            return require('../_nomodule/PixelManipulation.js')(input, {
+                output: output,
+                changePixel: changePixel,
+                extraManipulation: extraManipulation,
+                format: input.format,
+                image: options.image,
+                inBrowser: options.inBrowser,
+                callback: callback
+            });
+        })
+
+    }
+
+    return {
+        options: options,
+        draw: draw,
+        output: output,
+        UI: UI
+    }
+}