Query and compare the semver of a crate on crates.io.

See the rs docs. Github repo.

Example

```rust use cratesiover::Status; let query = cratesiover::query("cratesiover", &env!("CARGOPKGVERSION")).unwrap();

match query { Status::Behind(ver) => println!("crate is behind the version on crates.io {}", ver), Status::Equal(ver) => println!("crate is equal to the version on crates.io {}", ver), Status::Ahead(ver) => println!("crate is ahead of the version on crates.io {}", ver), } ```