N°2435.1 Portal: Split portal composer.json in 2

- Autoloader for portal files in the itop-portal-base module
- Dependencies moved to root composer.json
- Add autoloader for /core and /application content

lib/symfony/twig-bundle/Resources/views/Exception/traces.xml.twig

@@ -0,0 +1,8 @@
+        <traces>
+{% for trace in exception.trace %}
+            <trace>
+{{ include('@Twig/Exception/trace.txt.twig', { trace: trace }, with_context = false) }}
+
+            </trace>
+{% endfor %}
+        </traces>