🪚 Synthetic HardhatRuntimeEnvironment

[janjakubnanista]

In this PR

• Turns out we can synthesize the whole HardhatRuntimeEnvironment, we just need to be a bit careful when it comes to contexts. This means we no longer need to have our fingers in the hardhat internals, we let hardhat do the heavy lifting, and what we get on the output is consistent with the existing user experience (i.e. deployments, ethers etc etc, whatever the user configured)

// So easy
const bsc = getNetworkRuntimeEnvironment("bsc-testnet")
const ftm = getNetworkRuntimeEnvironment("fantom-testnet")