Add html, handler and db mock

html/static/navbar.html

@@ -0,0 +1,11 @@
+{{define "navbar"}}
+<div class="ui inverted menu">
+    <a href="/"><div class="header item">Trikotwaschliste</div></a>
+
+    <div class="right menu">
+        <a href="/querypage/create"><div class="item">Query</div></a>
+        <a href="/stats/interpret"><div class="item">Stats</div></a>
+        <a href="/credits"><div class="item">Credits</div></a>
+    </div>
+</div>
+{{end}}