Rust Thumbor client

[Thumbor](https://www.thumbor.org) is a smart imaging service. It enables on-demand crop, resizing and flipping of images. It features a very smart detection of important points in the image for better cropping and resizing, using state-of-the-art face and feature detection algorithms This library is a Rust client implementation of the Thumbor image service to generate image urls. ## Usage ```rust use thumbor::Server; let server = Server::new("http://localhost:8888", "my-security-key").unwrap(); let endpoint = server.endpoint_builder() .resize((300, 200)) .smart(true) .build(); let url = endpoint.to_url("path/to/my/image.jpg"); ```