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/psr/simple-cache/src/CacheException.php

@@ -0,0 +1,10 @@
+<?php
+
+namespace Psr\SimpleCache;
+
+/**
+ * Interface used for all types of exceptions thrown by the implementing library.
+ */
+interface CacheException
+{
+}