Issue #17 Added imprint and privacy policy page and added englisch language support to it.

imprint still unfinished

app/templates/partials/footer.html

@@ -0,0 +1,12 @@
+<footer class="page-footer">
+    <div class="page-footer-inner">
+        <div class="page-footer-copy">
+            <p class="page-footer-text" data-i18n="footerText">Schulprojekt rund um das Acht-Damen- und Acht-Türme-Problem.</p>
+        </div>
+
+        <nav class="page-footer-links" data-i18n-aria-label="footerNavAria" aria-label="Rechtliche Hinweise">
+            <a href="{{ url_for('main.privacy_policy') }}" data-i18n="footerPrivacy">Datenschutzerklärung</a>
+            <a href="{{ url_for('main.imprint') }}" data-i18n="footerImprint">Impressum</a>
+        </nav>
+    </div>
+</footer>