feat: add JSON-RPC API methods

[leovct]

Resolves #32

Based on https://ethereum.org/en/developers/docs/apis/json-rpc

• [x] web3 methods (2/2).
• [x] net methods (3/3).
• [ ] eth methods (2/37).

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Name	Status	Preview	Comments	Updated (UTC)
evm-diff	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Feb 19, 2024 10:52am