Added BarCode Scanner

Barcode_Generator/README.md

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+Steps to build the QR Code Generator in Python
+To build the QR code generator project using Python we need to follow the below steps:
+1. Importing the modules
+2. Creating the main window
+3. Taking the input of the text/URL, location to store the QR code, name of the QR code and the size of the QR code
+4. Writing the function to generate and save the QR Code
+TUTORIAL
+# Barcode-generator
+Desktop app to generate EAN-13, EAN-8 and EAN-5 barcodes (other types are coming soon) 
+automatically and save them as PDF or PNG, JPEG GIF image files with several sizes. 
+As a database it uses native python csv module and saves as csv file.
+(Using PyUPC-EAN module)
+
+*Requirements*
+- Standart python3 modules
+- [Pillow](https://pypi.python.org/pypi/Pillow/4.3.0)
+- [PyUPC-EAN](https://pypi.python.org/pypi/PyUPC-EAN/)
+
+Usage
+-----
+
+Run script and set default values on Settings window. 
+Then just click  `Generate` button: if barcode value is empty, 
+then app generates barcode automatically according to initial value of barcode, 
+else it generates by input value.
+
+To save barcode value and its comment, click `Save`. 
+This saves barcode as a file according to default filetype and filepath.
+
+To change barcode comment, just double click on barcode row in table below, 
+then make changes and click `Save` button. That it!