Remove use of moment.js

See project status here: https://momentjs.com/docs/#/-project-status/

Moment is no longer recommended for most projects even by moment.js maintainers and no new features are being added. We should investigate native browser alternatives for formatting dates.

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toLocaleDateString

We should make sure we don't regress on these bugs when we make this change:

https://bugzilla.redhat.com/show_bug.cgi?id=1883779
https://bugzilla.redhat.com/show_bug.cgi?id=1885309

We should make sure to restore the unit tests for relative times that were removed when we added moment. See

https://github.com/openshift/console/pull/6194

Acceptance Criteria

• moment.js is entirely removed as a dependency
• Any core console code and plugin code that uses moment is updated
• We don't regress on bug fix https://bugzilla.redhat.com/show_bug.cgi?id=1883779
• We have automated tests covering our handling of dates

cc ralpert anpicker@redhat.com