Support debugging with hardhat

[tennox]

Simple Summary

Make logging available via hardhat's console.log
Only really understanding a contract makes it secure. And it will ease development experience a lot!

Read the issue in the hardhat repo about it: NomicFoundation/hardhat#1018

[fubuloubu]

console.log is a particular semantic to how Hardhat has to hook into Solidity and enable this feature. We've been discussing adding more direct support with a print statement instead.