Remove NamedType

[oscartbeaumont]

Is it possible to cleanup the API surface? This could be a bad idea but worth investigating.

TODO:

• FIx TS exporter of Any, etc
• How do we compare types?
• How can we easily get an ID if required??? Can we make SpectaID not required???
• We loose some typesafety in the exporter primitives. Is this fine or can we restore it by only allow a NamedDataType struct to be passed in?
• Tauri Specta - tauri::ipc::Channel
• Tauri Specta - Event system

Rethinking references:

• Enforce constraints when constructing Reference that the type is in the typemap
• Using Reference instead of SpectaID publically and seal it????
• Allow comparing References?
• Allow producing reference to type or a completly random reference, which fixes the TypeCollection clone problem if it can be cloned.

Other:

// TODO: Put this somewhere. Maybe make public?
fn get_tid(dt: DataType) -> Option<SpectaID> {
    match dt {
        DataType::Reference(r) => Some(r.sid()),
        _ => None,
    }
}

[oscartbeaumont]

Replaced by #423