Add EU cookies law and improve TOS and about

Source/assets/html/base.twig

@@ -30,5 +30,25 @@
     <script>hljs.initHighlightingOnLoad();</script>
 {% endblock %}
 
-
+<link rel="stylesheet" type="text/css" href="//cdnjs.cloudflare.com/ajax/libs/cookieconsent2/3.0.3/cookieconsent.min.css" />
+<script src="//cdnjs.cloudflare.com/ajax/libs/cookieconsent2/3.0.3/cookieconsent.min.js"></script>
+<script>
+    window.addEventListener("load", function(){
+        window.cookieconsent.initialise({
+            "palette": {
+                "popup": {
+                    "background": "#2196f3",
+                    "text": "#b2dbfb"
+                },
+                "button": {
+                    "background": "transparent",
+                    "text": "#b2dbfb",
+                    "border": "#b2dbfb"
+                }
+            },
+            "content": {
+                "href": "http://localhost:8080/?page=tos#cookiePolicy"
+            }
+        })});
+</script>
 </body>