MobileCoin build-script helper

Project ChatLicenseArchitecture: anyCrates.ioDocs StatusDependency StatusCodeCov StatusGitHub Workflow StatusContributor Covenant

Cargo build-script assistance, from MobileCoin.

This crate provides a programmatic API for dealing with the various strings passed into build scripts via environment variables.

```rust, norun use mcbuild_rs::Environment;

let env = Environment::new().expect("Could not parse environment"); asserteq!(env.name(), "mcbuild_rs"); ```