Add support for other EVM chains

[peroket]

Hello, we have a local version of evmc and evmone where we added support for Avax, and are working to add support for more chains as well.

I would like to know if you would be willing to work with us to push those changes in a way that suit you in your master?
We would start first with Avax, and add other chains as we finish the support for them.

If you are OK to push forward, I would open a PR with our current changes and work with you to bring it to the quality level needed for the merge.