doc UPDATE add GDPR footer

Author: michalvasko

Doxyfile.in

@@ -1137,7 +1137,7 @@ HTML_HEADER            =
 # that doxygen normally uses.
 # This tag requires that the tag GENERATE_HTML is set to YES.
 
-HTML_FOOTER            =
+HTML_FOOTER            = doc/footer.html
 
 # The HTML_STYLESHEET tag can be used to specify a user-defined cascading style
 # sheet that is used by each HTML page. It can be used to fine-tune the look of

doc/footer.html

@@ -0,0 +1,7 @@
+<div id="nav-path" class="navpath"><!-- id is needed for treeview function! -->
+  <ul>
+    $navpath
+    <li class="footer"><a href="https://www.cesnet.cz/en/gdpr">Legal Information</a></li>
+    <li class="footer">$generatedby <a href="https://www.doxygen.org/index.html"><img class="footer" src="$relpath^doxygen.svg" width="104" height="31" alt="doxygen"/></a> $doxygenversion </li>
+  </ul>
+</div>