Move to Symfony Flex

The structure changed completely.
Bundles are gone. Everything is flatten in the folder `src`.
I separated import & api controllers to avoid _pollution_ in the main controller folder.

templates/Developer/client.html.twig

@@ -0,0 +1,37 @@
+{% extends "layout.html.twig" %}
+
+{% block title %}{{ 'developer.client.page_title'|trans }}{% endblock %}
+
+{% block content %}
+<div class="row">
+    <div class="col s12">
+        <div class="card-panel settings">
+
+            <div class="row">
+                <p>{{ 'developer.client.page_description'|trans }}</p>
+                {{ form_start(form) }}
+                {{ form_errors(form) }}
+
+                <div class="input-field col s12">
+                    {{ form_label(form.name) }}
+                    {{ form_errors(form.name) }}
+                    {{ form_widget(form.name) }}
+                </div>
+
+                <div class="input-field col s12">
+                    {{ form_label(form.redirect_uris) }}
+                    {{ form_errors(form.redirect_uris) }}
+                    {{ form_widget(form.redirect_uris) }}
+                </div>
+
+                <a href="{{ path('developer') }}" class="waves-effect waves-light grey btn">{{ 'developer.client.action_back'|trans }}</a>
+                {{ form_widget(form.save, {'attr': {'class': 'btn waves-effect waves-light'}}) }}
+
+                {{ form_rest(form) }}
+            </div>
+
+        </div>
+    </div>
+</div>
+
+{% endblock %}