Changes to the library

[dev-ardi]

Motivation

This is the first crate that shows up when you search for "Rust DNI crate". It should be high quality.

Changes

Error enum

• This PR introduces the thiserror crate to provide an idiomatic way to return errors. I assume that the author comes from a golang background but in Rust we have other patterns.
• This allows the users of the crate to use the errors in a more fine-grained way while also having the a default display.
• All of the exported functions now return a Result with this.

Refactors

Changed some patterns so that they are more rust-like

[jsgm]

Hi @dev-ardi!

I greatly appreciate your efforts and invite you to continue contributing to the repo.

I've just merged the pull request.

[dev-ardi]

Thanks for merging, do you think you could make a release to crates.io?

[jsgm]

Thanks for merging, do you think you could make a release to crates.io?

Published!