Describe the feature or problem you’d like to solve

When using the api command if the server responds with a generic error response or a 404 it can be tricky to determine what went wrong. Getting detailed information about what went wrong with an API request can be achieved by setting GH_DEBUG=api environment variable but discoverability of that setting is low.

Proposed solution

I propose adding a --verbose flag to the api command which will output the same debugging information as if GH_DEBUG=api environment variable had been supplied.