Expands ~
in a path if present.
```rust use std::path::Path; use plain_path::PlainPathExt;
let path = Path::new("~/.ssh/config").plain()?;
// 🍏: "/Users/
Licensed under either of
at your option.
Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.