Add an example test case for utilizing the `Multicall3` contract

[m-Peter]

Description

Multicall3: https://github.com/mds1/multicall

---

For contributor use:

• [x] Targeted PR against master branch
• [x] Linked to Github issue with discussion and accepted design OR link to spec that describes this work.
• [x] Code follows the standards mentioned here.
• [x] Updated relevant documentation
• [x] Re-reviewed Files changed in the Github PR explorer
• [x] Added appropriate labels

Summary by CodeRabbit

• New Features

  • Introduced a Multicall3 smart contract for batch processing of multiple Ethereum function calls, improving transaction efficiency and reducing gas costs.
  • Added new end-to-end tests for validating deployment and interaction of the Multicall3 contract and a storage contract.

• Bug Fixes

  • Enhanced error handling within the Multicall3 contract to preserve transaction integrity when individual calls fail.

• Documentation

  • Added a new ABI definition for the Multicall3 contract, detailing its capabilities and functions.

[coderabbitai[bot]]

Walkthrough

This update introduces a new Multicall3 smart contract, enhancing the ability to batch multiple function calls into a single transaction, optimizing gas usage. It includes comprehensive tests for deploying and interacting with the contract using Web3.js. The changes improve the end-to-end test suite and expand functionality for efficient smart contract interactions, particularly in decentralized finance applications.

Changes

File Path	Change Summary
tests/e2e_web3js_test.go	Adds a test for deploying and interacting with the multicall3 contract, improving end-to-end test coverage for Web3 interactions.
tests/fixtures/multicall3.byte	Introduces smart contract bytecode for the multicall3 functionality, allowing batching of multiple function calls to optimize gas usage and transaction efficiency.
tests/fixtures/multicall3.sol	Introduces the Multicall3 smart contract with methods for aggregating calls, handling errors, and managing input/output efficiently, enhancing previous versions.
tests/fixtures/multicall3ABI.json	Defines the ABI for the Multicall3 contract, specifying functions that enable batch processing of calls and retrieval of blockchain data, streamlining interactions.
tests/web3js/eth_multicall3_contract_test.js	Adds unit tests for deploying the multicall3 contract and validating interactions with a storage contract, ensuring correct operation of the multicall functionality.

Sequence Diagram(s)

sequenceDiagram
    participant User
    participant Web3
    participant Multicall3
    participant Storage

    User->>Web3: Deploy Storage Contract
    Web3->>Storage: Deploy
    Storage-->>Web3: Contract Address

    User->>Web3: Deploy Multicall3 Contract
    Web3->>Multicall3: Deploy
    Multicall3-->>Web3: Contract Address

    User->>Web3: Call aggregate3 on Multicall3
    Web3->>Multicall3: Execute Calls
    Multicall3->>Storage: Call sum(10, 10)
    Storage-->>Multicall3: Return 20
    Multicall3->>Storage: Call sum(10, 40)
    Storage-->>Multicall3: Return 50

    Multicall3-->>Web3: Return Results
    Web3-->>User: Display Results

🐇 In code and contracts, we now play,
With Multicall3, we save the day!
Batch our calls, how sweet the sound,
Efficiency and gas, all around!
Hop along with tests that shine,
In the world of Web3, we redefine! 🌟

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