WIP: enable linting and bingo management of the lint tool

[grokspawn]

Discovered that the lint make target doesn't lint anything. It only checks whether go imports are in expected grouping/ordering.

This PR introduces gci support (replacing goimports) as a targeted linter, and implements golang-linter support via a bingo-managed version.

Description of the change:

Motivation for the change:

Reviewer Checklist

• Implementation matches the proposed design, or proposal is updated to match implementation
• Sufficient unit test coverage
• Sufficient end-to-end test coverage
• Docs updated or added to /docs
• Commit messages sensible and descriptive

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: grokspawn

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 46.80%. Comparing base (a0a503e) to head (b044ec9).

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1524   +/-   ##
=======================================
  Coverage   46.80%   46.80%           
=======================================
  Files         135      135           
  Lines       15760    15760           
=======================================
  Hits         7377     7377           
  Misses       7342     7342           
  Partials     1041     1041           

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