Adding Rust support to TSS.MSR

[Kasher]

This PR adds a complete Rust implementation of the TSS, following the same architecture as the existing C++ support.

What's included:

• TssCodeGen - Extended to emit Rust types, enums, unions, and command dispatch
• Auth infrastructure - HMAC and policy sessions, session key derivation (KDFa), response HMAC verification, parameter encryption (AES-CFB)
• PolicyTree - Full policy abstraction with 14 assertion types
• 37 samples - Matching C++ Samples.cpp coverage (keys, NV, attestation, sealing, import/duplicate, audit, bound sessions, etc.)

[Kasher]

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