Type name collision / re-enable renaming

[Pistonight]

Previously #[serde(rename = "...")] can be used to rename types, but it had a problem when the type is referenced in other types madonoharu#43

However, without renaming, there could be name collisions

use serde::{Deserialize, Serialize};
use tsify::Tsify;
use wasm_bindgen::prelude::*;

mod foo {
  #[derive(Tsify, Serialize, Deserialize)]
  #[tsify(into_wasm_abi, from_wasm_abi)]
  pub struct Bar {
     ...
  }
}
mod biz {
  #[derive(Tsify, Serialize, Deserialize)]
  #[tsify(into_wasm_abi, from_wasm_abi)]
  pub struct Bar {
    ...
  }
}

becomes

export interface Bar {
  ...
}
export interface Bar {
  ...
}

To fix this, 3e81856 could be reverted to enable rename again, and madonoharu#43 can be addressed with #[tsify(type = "RenamedType")]

[siefkenj]

Hmmm...this does seem tricky. It's not nice to require users to rename there types all over the place.

Ideally, types wouldn't be global, but could be in typescript modules, but I don't think there's a way to deduce that from inside a Rust macro.

If you have name collisions, you should be able to use the namespace attribute to prevent the collision.

[siefkenj]

Apparently namespace does not work the way I thought it did...this will need different workaround.