Release-v2.1-Bonjour

Bonjour-v2.1

This is the 2nd version of NamePicker, we upgraded the GUI, making it more recogonizable, and changed the way it works.

• Stoped using a csv list to save the data it would read, instead, we're now using the SQLite3!
• Added README file to help the user.
• Added the new icon!
• Added the support website in the main window.(Although it may not work.)
• Changed the GUI, making it more modern!

It is the ideal appearance I thought, it will be pass down, I do think.
So I named it "Bonjour"!

Full Changelog: https://github.com/MCMjun/NamePicker/commits/v2.1