Allow TTY output from process

This allows us to get the coloured output from Process.

src/NewCommand.php

@@ -64,6 +64,8 @@ class NewCommand extends Command
         ];
 
         $process = new Process(implode(' && ', $commands), $directory, null, null, null);
+        
+        $process->setTty(true);
 
         $process->run(function ($type, $line) use ($output) {
             $output->write($line);