[D5.3] Adapt Liquidity Generator Token Contract to Rust for Soroban

[joaquinsoza]

Description: Translate the identified Solidity smart contract for liquidity generator tokens into Rust for deployment on Soroban.

Tasks:

• Translate the Solidity contract code to Rust.
• Ensure all key functionalities of the liquidity generator token are retained.
• Write tests for the Rust-based contract.
• Deploy the contract on the Soroban testnet.