Create a user authentication demo in Rust's Warp framework

[puneetsingh24]

Need to create a small user authentication demo using LoginRadius solution, Check our Demo Guidelines for how to make the authentication demo and Contributing Guidelines to know about the contribution flow.

Language - Rust (latest stable version)
Framework - Warp (latest stable version)
Code Folder - https://github.com/LoginRadius/developer-authentication-demos/tree/master/demos/rust/warp