Hardhat <> Gnosis Chain

[alebanzas]

Gnosis and Chiado integration with Hardhat.

Check:

• [x] Hardhat core https://github.com/NomicFoundation/hardhat/pull/3648
• [x] Hardhat-gas-reporter https://github.com/cgewecke/hardhat-gas-reporter/pull/146
• [x] Hardhat docs
• [x] Gnosis docs https://github.com/gnosischain/documentation/pull/382

Some refs:

• https://github.com/cgewecke/hardhat-gas-reporter
• https://github.com/Tenderly/hardhat-tenderly
• https://hardhat.org/docs
• https://github.com/gnosischain/documentation/issues/138
• https://github.com/gnosischain/documentation/issues/137
• https://github.com/NomicFoundation/hardhat