Soroban Rust: Add Transaction Simulation Capability to Client

[manoahLinks]

Implement transaction simulation features in the Rust-based Soroban client, allowing developers to preview the effects of transactions before submitting them.

[wavyboy-build]

@wavyboy-build has applied to work on this issue as part of the Stellar Wave Program's 4th wave.

Pls assign me this issue

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[OsejiFabian]

@OsejiFabian has applied to work on this issue as part of the Stellar Wave Program's 4th wave.

i would like to work on this issue please

ℹ️ Repo Maintainers: To accept this application, review their application or assign @OsejiFabian to this issue.