[native/rust_library] Add Tunnelbroker protobuf file compilation to the native client

Summary:
This diff introduces adding the Tunnelbroker's protobuf file compilation for the native client. The compilation step was added to the build step of the native/native_rust_library Rust library linked to the native by the CXX bridge.

Linear task: ENG-1333

Test Plan: Rust native library is successfully built.

Reviewers: varun, atul, jon

Reviewed By: varun

Subscribers: ashoat, tomek, atul

Differential Revision: https://phab.comm.dev/D5807