Consider using `-v` flag for `neofs-cli`

That is verbose for cli. We have it but almost no one uses it and that is why it may be bad. Seems like tests are the place where it may play well. If we have some feedback, we can improve it.

Current Behavior

No steps use -v flag.

Expected Behavior

Use -v flag cause tests are expected to tell us as much info as possible when something is broken.

Possible Solution

Use -v flag. Maybe it can be optional.

Steps to Reproduce

Run tests, see no -v flag.

Context

Recently I really had to push debug prints to the PR to know what was the reason for the failure I faced. -v would answer me immediately.