Updates to aludel create-aludel task, hardhat config, packages & documentation

[joehquak]

Changes to create-aludel

• Skip reward deposit if amount = 0
• Skip owner change if signer == owner or owner unset
• Add example CLI command

Changes to hardhat config

• Remove unused import
• Support for Avalanche & Polygon

Upgrades

• Upgrade hardhat-etherscan to support more networks

Readme

• Add new contracts on Mainnet
• Add contracts on Polygon and Avalanche