docs: detailed documentation of `primitives`

[hmrtn]

Primitives documentation updates:

• [x] access_list.rs
• [x] blocks.rs
• [x] ethers.rs
• [x] keccak.rs
• [x] receipt.rs
• [x] revm.rs
• [x] signature.rs
• [x] transaction.rs
• [x] trie/account.rs
• [x] trie/mpt.rs
• [x] withdrawl.rs