* add account task

* add solidity and change hardhat config and index

Co-authored-by: Casper Belier <casper@blocklab.nl;casperbelier@hotmail.com>
Co-authored-by: Maurelian <maurelian@protonmail.ch>
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>