Implement ERC-165 support

ExWeb3 / elixir_ethers

A comprehensive Web3 library for interacting with smart contracts on Ethereum using Elixir.

https://hexdocs.pm/ethers

Apache License 2.0

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Closed alisinabh closed 7 months ago

alisinabh commented 7 months ago

Closes #108

EIP-165 provides a way to check if a contract supports a specific interface or not.

This PR adds:

Separate Ethers.Contracts.ERC165 contract
A behaviour for other contracts supporting ERC165 interface checks to expose their interface ID.
Support calling Ethers.Contracts.ERC165.supports_interface/1 with modules implementing ERC165 behaviour instead of interface IDs directly.