Added a GUI chat app with no networking done)

[CybearTron]

Pull Request checklist -

• [#2219 ] This pull request fixes #issue_reference (Create an issue if not already present.)
• [* ] The directory structure is of the form (directory_name) (If directory doesn't exist, create a new.)
• [ *] Don't duplicate stuff.

Make sure all the above conditions are met before a PR is created.