Adding Support for Sending Data Between the Frontend and the Backend

[MrVintage710]

This PR is a small one, and is related to issue #26. This PR adds:

• Entity struct now implements Serialize.
• Entity structs can now be returned in a tauri command to be sent to the frontend.
• Types that implement TS should now generate typescript types that match their serde translation

To send data over a command, you have to have something like this:

#[tauri::command]
fn get_test_data() -> Vec<Entity> {
    let mut entity : Entity = Entity::new();
    entity.add(Name("Test".to_string()));
    vec![entity]
}

and on the front end you do this:

let data = await invoke("get_test_data"); //Data should be {Name : "Test"}

To receive data on the backend, you do this:

#[tauri::command]
fn set_test_data(data : Value) {
    let mut entity : Entity = Entity::new();
    let name : Name = serde_json::from_value(data["Name"].clone()).unwrap();
    let damage : Damage = serde_json::from_value(data["Damage"].clone()).unwrap();
    entity.add(name);
    entity.add(damage);
    println!("Test {}", entity.to_string());
}

Sadly there is no functions that can do this nicely. Data that coms from the frontend must be sorted out by the backend. To send data from the front end you do this:

invoke("set_test_data", {data : entity});

[Gearhartlove]

Note: I really like the list registering of types, that's sweet!