Fix bigint errors; add evm tests; improve typing

[kajoseph]

Description

• Fixes several bigint errors introduced by Upgrade Web3 to v4 #3919
• Adds evm tests to make sure the above is held accountable
• Improves typing in TS files and adds jsdocs to JS files

Make sure...

• I have read CONTRIBUTING.md and verified that this PR follows the guidelines and requirements outlined in it.
• I have added the appropriate package tag(s) (e.g. BWC if modifying the bitcore-wallet-client package, CLI if modifying the bitcore-cli package, etc.)
• I have verified that this is not an existing PR (open or closed)

Testing Notes

• Syncing with the moralis module should not throw errors. e.g. export CHAIN=MATIC && export NETWORK=mainnet && node packages/bitcore-node/build/src/workers/p2p.js