Do not obscure the files object in verbose output

[kumar303]

If you do something like web-ext sign --verbose (which calls signAddon({verbose: true})) then you get a log of API responses. However, the files array is not shown. This is crucial part of the output for debugging purposes so we should show it. Example:

response:
   { guid: 'blok@mozilla.org',
     active: false,
     automated_signing: true,
     url: 'https://addons.mozilla.org/api/v3/addons/blok@mozilla.org/versions/1.0rc6/uploads/94b362a2b65f482aa6bf54397dbbb976/',
     files: [ [Object] ],
     passed_review: false,
     pk: '94b362a2b65f482aa6bf54397dbbb976',
     processed: true,
     reviewed: false,
     valid: true,
     validation_results:
      { errors: 0,
        success: true,
        warnings: 0,
        messages: [Object],
        passed_auto_validation: true,
        ending_tier: 5,
        compatibility_summary: [Object],
        detected_type: 'extension',
        signing_summary: [Object],
        notices: 1,
        signing_ignored_summary: [Object],
        metadata: [Object] },
     validation_url: 'https://addons.mozilla.org/en-US/developers/upload/94b362a2b65f482aa6bf54397dbbb976',
     version: '1.0rc6' } }

[kumar303]

We should just log all nested objects at an infinite depth (or a very large depth).

[stale]

This issue has been automatically marked as stale because it has not had recent activity. If you think this bug should stay open, please comment on the issue with further details. Thank you for your contributions.