Provide Schema Registry support in the Rust Data Transforms SDK

[voutilad]

Who is this for and what problem do they have today?

Rust 🦀 users of our wasm capabilities.

What are the success criteria?

Provide SR support analogous to the Go SDK so Rust transforms have access to Schema for deserializing/serializing data from and to topics.

Why is solving this problem impactful?

If a Producer or Consumer is already using SR, it will create additional work and complexity on the transform developer if not make for brittle transform logic that has to hardcode schema information.

Additional notes

[rockwotj]

There is a work in progress version here if you want to kick the tires: #16464

I just need to test, then it will be ready for a review.