New creates a new `Hardhat` struct and reads all of the files from disk so that they are cached for the end user.

Artifact represents a hardhat compilation artifact The Bytecode and DeployedBytecode are not guaranteed to be hexutil.Bytes when there are link references.

BuildInfo represents a hardhat build info artifact that is created after compilation.

DebugFile represents the debug file that contains the path to the build info file.

Deployment represents a hardhat-deploy artifact file.

`Hardhat` encapsulates all of the functionality required to interact with hardhat style artifacts.

LinkReferenceOffset represents the offsets in a link reference.

Log represents the logs in the hardhat deploy artifact receipt.

Receipt represents the receipt held in a hardhat-deploy artifact file.

LinkReference represents a single linked contract.

LinkReferences represents the linked contracts.