Add Web3 and Blockchain Resources

[Olufisayomi]

Create a new resources file for Web3 and Blockchain development. Include tutorials, courses and tools for: smart contracts(solidity, remix IDE), Development frameworks( Hardhat, Truffle), Libraries(Web3.js, Ethers.js)

[em07-adoz]

Hi @Olufisayomi. Please go ahead. Ensure you checked the other fields folder to see how to structure the resources