Introduce log levels and move unneeded logs to `debug` log level

[Brett Curtis]

Describe the bug

Seeing duplicate or unclear output in regards to Success! The configuration is valid.

Command 'terraform init' successfully done: regional/infra
Success! The configuration is valid.

Success! The configuration is valid.

How can we reproduce it?

gh repo clone osinfra-io/google-cloud-networking

cd google-cloud-networking

 find . -name ".terraform.lock.hcl" | xargs rm -rf

 find . -name ".terraform" | xargs rm -rf

pre-commit run -a

[Maksym Vlasov]

Okay, need to add a DEBUG log level, set log level to INFO by default, and move mostly all of these logs to the DEBUG lvl