Local project symfony/console 4.x error when using 3.x globally

[robbieaverill]

If you're running this globally with Composer it's currently using symfony/console 3.x. SilverStripe 4.x uses symfony/console 4.x if you have Behat installed. For some reason parts of this API are autoloaded before the global console library, so you end up with this error when running ssconsole:

ERROR [Emergency]: Uncaught Error: Call to undefined method Symfony\Component\Console\Helper\QuestionHelper::getInputStream()
IN GET /
Line 911 in /Users/robbieaverill/.composer/vendor/symfony/console/Application.php

Source
======
  902:             $inputStream = null;
  903: 
  904:             if ($input instanceof StreamableInputInterface) {
  905:                 $inputStream = $input->getStream();
  906:             }
  907: 
  908:             // This check ensures that calling QuestionHelper::setInputStream() works
  909:             // To be removed in 4.0 (in the same time as QuestionHelper::setInputStream)
  910:             if (!$inputStream && $this->getHelperSet()->has('question')) {
* 911:                 $inputStream = $this->getHelperSet()->get('question')->getInputStream(false);
  912:             }
  913: 
  914:             if (!@posix_isatty($inputStream) && false === getenv('SHELL_INTERACTIVE')) {
  915:                 $input->setInteractive(false);
  916:             }
  917:         }

Trace
=====
Symfony\Component\Console\Application->configureIO(, Symfony\Component\Console\Output\ConsoleOutput)
Application.php:145

Symfony\Component\Console\Application->run()
Scaffold.php:82

SilverLeague\Console\Framework\Scaffold->run()
ssconsole:24

We should probably update to console 4.x. There may still be conflicts with other libraries (like silverstripe/cow) which require symfony/console 3.x, but they can deal with that.