feat: Add cover page template

extensions/sbb-pdf-exporter/cover.html

@@ -0,0 +1,50 @@
+<article id="cover">
+  <div id="top"></div>
+  <div id="center">
+    <p>{{ PROJECT_NAME }}</p>
+    <p>{{ DOCUMENT_NAME }}</p>
+    <table>
+      <tr>
+        <th>Author</th>
+        <td>{{ author }}</td>
+      </tr>
+      <tr>
+        <th>Status</th>
+        <td>{{ status }}</td>
+      </tr>
+      <tr>
+        <th>Confidentiality</th>
+        <td>{{ docConfidentiality }}</td>
+      </tr>
+      <tr>
+        <th>Copyright</th>
+        <td>
+          This document is protected by copyright. Any further use requires
+          prior explicit permission from the copyright holder.
+        </td>
+      </tr>
+    </table>
+  </div>
+  <div id="bottom">
+    <table>
+      <tr>
+        <th></th>
+        <th>Created</th>
+        <th>Checked</th>
+        <th>Released</th>
+      </tr>
+      <tr>
+        <th>Name</th>
+        <td>{{ docCreatedBy }}</td>
+        <td>{{ docCheckedBy }}</td>
+        <td>{{ docReleasedBy }}</td>
+      </tr>
+      <tr>
+        <th>Date</th>
+        <td>{{ docCreationDate }}</td>
+        <td>{{ docCheckDate }}</td>
+        <td>{{ docReleaseDate }}</td>
+      </tr>
+    </table>
+  </div>
+</article>