An easy to use persistent data storage library. Integrates well with Serde.
```rust
struct Message { id: usize, message: String, }
let msg1 = Message {
id: 1,
message: "Hello there, you suck".tostring(),
};
let msg2 = Message {
id: 2,
message: "No you".tostring(),
};
let msg3 = Message {
id: 3,
message: "You both suck".to_string(),
};
let messages = vec![msg1, msg2, msg3];
let path = PathBuf::new("messages.crf");
let client: Client