Add gerrit dashboard files

Move the gerrit-dash-creator input files to a repo where the Oslo team
can more easily manage them and add a tox environment with supporting
tools to build the dashboard URLs.

Change-Id: I9057ea3ae1d96ed1d122de72a00273c42c15f809

build_dashboards.sh

@@ -0,0 +1,16 @@
+#!/bin/bash
+#
+# Process the dashboard files and emit the URLs
+
+creator_dir=$1
+dashboard_dir=$2
+
+cd $creator_dir
+
+for f in $dashboard_dir/*.dash
+do
+    echo '----------------------------------------'
+    echo $(basename $f .dash)
+    echo '----------------------------------------'
+    ./gerrit-dash-creator $f
+done