Ensure access_token are removed

When we remove the client, we should ensure that access_token are also removed.

To ensure that, I created a test that generated an access_token. So when we remove the client, this association should be cascaded and shouldn’t generate an error.

Also I moved some Api related stuff to the ApiBundle (like the developer controler and ClientType form)

src/Wallabag/CoreBundle/Form/Type/ClientType.php

@@ -1,46 +0,0 @@
-<?php
-
-namespace Wallabag\CoreBundle\Form\Type;
-
-use Symfony\Component\Form\AbstractType;
-use Symfony\Component\Form\CallbackTransformer;
-use Symfony\Component\Form\Extension\Core\Type\SubmitType;
-use Symfony\Component\Form\Extension\Core\Type\UrlType;
-use Symfony\Component\Form\Extension\Core\Type\TextType;
-use Symfony\Component\Form\FormBuilderInterface;
-use Symfony\Component\OptionsResolver\OptionsResolver;
-
-class ClientType extends AbstractType
-{
-    public function buildForm(FormBuilderInterface $builder, array $options)
-    {
-        $builder
-            ->add('name', TextType::class, ['label' => 'developer.client.form.name_label'])
-            ->add('redirect_uris', UrlType::class, ['required' => false, 'label' => 'developer.client.form.redirect_uris_label'])
-            ->add('save', SubmitType::class, ['label' => 'developer.client.form.save_label'])
-        ;
-
-        $builder->get('redirect_uris')
-            ->addModelTransformer(new CallbackTransformer(
-                function ($originalUri) {
-                    return $originalUri;
-                },
-                function ($submittedUri) {
-                    return [$submittedUri];
-                }
-            ))
-        ;
-    }
-
-    public function configureOptions(OptionsResolver $resolver)
-    {
-        $resolver->setDefaults([
-            'data_class' => 'Wallabag\ApiBundle\Entity\Client',
-        ]);
-    }
-
-    public function getBlockPrefix()
-    {
-        return 'client';
-    }
-}