Add dependencies to preset that would otherwise be installed by npm

By adding Tailwind, vue, and vue-template-compiler as direct
dependencies of a freshly preset application, you won't need to run `npm
run dev` a second time.

Closes #41

src/TailwindCssPreset.php

@@ -30,6 +30,9 @@ protected static function updatePackageArray(array $packages)
             'laravel-mix' => '^4.0.14',
             'laravel-mix-purgecss' => '^4.1',
             'laravel-mix-tailwind' => '^0.1.0',
+            'tailwindcss' => '^0.7.4',
+            'vue' => '^2.5.17',
+            'vue-template-compiler' => '^2.6.4',
         ], Arr::except($packages, [
             'bootstrap',
             'bootstrap-sass',