Rust Runtime features for running Oak applications

[ipetr0v]

This checklist contains features that must be implemented in the Rust Oak Runtime in order to run Oak applications, viz. existing example applications.

• [x] Implement Rust Oak Loader (Issue: https://github.com/project-oak/oak/issues/723, PR: https://github.com/project-oak/oak/pull/749)
• [x] Rust gRPC server pseudo-node
  • [x] Implement gRPC server pseudo-node (Issue: https://github.com/project-oak/oak/issues/751, PR: https://github.com/project-oak/oak/pull/772)
  • [x] Add TLS support (Issue: https://github.com/project-oak/oak/issues/806, PR: https://github.com/project-oak/oak/issues/806)
    • [x] Add tonic as a crate in cargo-raze (Issue: https://github.com/project-oak/oak/issues/890, PR: https://github.com/project-oak/oak/pull/891)
  • [x] Refactor pseudo-node creation (Issue: https://github.com/project-oak/oak/issues/982, PR: https://github.com/project-oak/oak/pull/985)
  • [x] Add streaming support (Issue: https://github.com/project-oak/oak/issues/953)
  • [x] Implement unit tests (Issue: https://github.com/project-oak/oak/issues/807, PR: https://github.com/project-oak/oak/pull/1109)
• [x] Rust gRPC client pseudo-node
  • [x] Implement Rust gRPC client pseudo-node (Issue: https://github.com/project-oak/oak/issues/844, PR: https://github.com/project-oak/oak/pull/909)
  • [x] Add streaming support (Issue: https://github.com/project-oak/oak/issues/954, PR: https://github.com/project-oak/oak/pull/1056)
• [x] Run examples with Rust Oak Loader (Issues: https://github.com/project-oak/oak/issues/725, https://github.com/project-oak/oak/issues/874, PR: https://github.com/project-oak/oak/pull/993)
  • [x] Enable abitest additional tests (requires storage pseudo-node and Roughtime pseudo-node)
  • [x] Enable tensorflow (requires either Wasm stubs for WASI entrypoints like #529, or remove the need for them #817)
  • [x] Enable C++ examples (Issue: https://github.com/project-oak/oak/issues/1009, PR: https://github.com/project-oak/oak/pull/1019)

[ipetr0v]

cc @tiziano88 @daviddrysdale @conradgrobler

[daviddrysdale]

I think we can close this out as remaining things are covered by other issues (esp #1040 for storage)?