IDP Upgrade from Laravel 4.X to 5.X

In order to migrate IDP from LV 4.x to
latest LV version, following task were performed:

* Updated namespace to be complain with PSR-4
* General Refactoring: moved all DB access code
  from services to repositories.
* Migration to LV 5.X: these migration guides
  were applied
  - https://laravel.com/docs/5.3/upgrade#upgrade-5.0
  - https://laravel.com/docs/5.3/upgrade#upgrade-5.1.0
  - https://laravel.com/docs/5.3/upgrade#upgrade-5.2.0
* Improved caching: added repositories decorators
  in order to add REDIS cache to queries, entities

Change-Id: I8edf9f5fce6585129701c88bb88332f242307534

app/Strategies/IConsentStrategy.php

@@ -0,0 +1,17 @@
+<?php namespace Strategies;
+/**
+ * Interface IConsentStrategy
+ * @package Strategies
+ */
+interface IConsentStrategy {
+    /**
+     * @return mixed
+     */
+    public function getConsent();
+
+    /**
+     * @param string $trust_action
+     * @return mixed
+     */
+    public function postConsent($trust_action);
+}