Testing WASM integration of Zama libraries with Swift/iOS

[bhaskarkishore]

Goal: Add Rust Zama libraries to an iOS Swift project via the WASM mechanism and be able to call Zama functions and parse results.

A suggested pathway for achieving this is as follows:

1. Create single screen / page Swift iOS app. The app should have a button. Clicking this should eventually invoke a Rust function and then display the values returned by it.
2. Add WASM support to the project. Here are a few web resources talking about ios/rust/wasm:
   • https://artificialworlds.net/blog/2022/07/06/building-cross-platform-rust-for-web-android-and-ios-a-minimal-example/
   • https://www.mux.com/blog/practical-client-side-rust-for-android-ios-and-web
   • https://dev.to/h_ajsf/building-wasm-android-and-ios-app-with-singlecommon-rust-core-code-3ja4
     They all implement a trivial rust functions (adding to numbers, returning a string etc). Integrate one such function into the iOS app, invoke it and display results.
3. Add the Zama library to the project and see the project compiles.
4. Invoke the key generation function in the Zama library either directly or via a wrapper function.
5. Display the keys in the iOS app.

[bhaskarkishore]

Completed earlier