Implement a simple interface in Rust for structured logging

Implement macros and a few helpers to create a simple interface to
structured logging in Rust.
In addition, add tests for structured logging.

Bug: 290589708
Test: Launched target and run tests
Change-Id: I52edcc8af423394e6717fdd8df64b8b44e1e5e22
GitOrigin-RevId: 9b308495b520fbf795e4a39b803eb8325898011b