Add Logger UIModule

src/app/templates/module-logger.html

@@ -0,0 +1,7 @@
+<h1>Logs</h1>
+<p id="{{ anchor_id }}">
+    &nbsp;
+</p>
+<button type="button" class="btn btn-outline-primary anchor" id="{{ anchor_id }}_event">
+    Next
+</button>

src/app/ui_modules/__init__.py

@@ -0,0 +1 @@
+from .logger import Logger

src/app/ui_modules/logger.py

@@ -0,0 +1,6 @@
+from tornado.web import UIModule
+
+
+class Logger(UIModule):
+    def render(self, anchor_id, *args, **kwargs):
+        return self.render_string('module-logger.html', anchor_id=anchor_id)