todo: add logging examples to template and docs

add logging examples to the template repo and to the docs, as it's a common question that people checking out dapptools ask

"Hey, all just getting re-started with dapptools and I was wondering if there was an easy way to log like with hardhat console.log feature ?"

"use the log events in DS-Test with a verbosity of 1 or more for failing tests and 2 or more to see them even for successful tests"

https://github.com/dapphub/ds-test/blob/0a5da56b0d65960e6a994d2ec8245e6edd38c248/src/test.sol#L19-L36