Added script to generate stats on a git checkout

infra/tools/antibody/static/stats.css

Index: infra/tools/antibody/static/stats.css
diff --git a/infra/tools/antibody/static/tbr_by_user.css b/infra/tools/antibody/static/stats.css
similarity index 52%
copy from infra/tools/antibody/static/tbr_by_user.css
copy to infra/tools/antibody/static/stats.css
index 9f99eda0f01ce077f144a4696689def9dad60161..308340c6acc80d25d1e1882050e83b4ca6c06841 100644
--- a/infra/tools/antibody/static/tbr_by_user.css
+++ b/infra/tools/antibody/static/stats.css
@@ -25,21 +25,43 @@ body {
   color: #A3A3A3;
 }
 
-.input-group {
+.stats_by_time {
   margin-top: 70px;
-  width: 70%;
-  margin-left: auto;
-  margin-right: auto;
 }
 
-.commits_to_be_reviewed {
-  margin-top: 50px;
+.data_name {
+  width: 97%;
+}
+
+.col-md-4{
+  padding:5px;
+}
+
+.stats_7_day {
+  border: 1px solid #ccc;
+  padding: 0px 10px 10px 10px;
+}
+
+.stats_30_day {
+  border: 1px solid #ccc;
+  padding: 0px 10px 10px 10px;
+}
+
+.stats_all_time {
+  border: 1px solid #ccc;
+  padding: 0px 10px 10px 10px;
+}
+
+.charts {
+  margin-top: 30px;
+  margin-left: auto;
+  margin-right: auto;
 }
 
-.data_item {
-  text-align: center;
+#commits_chart {
+  height: 400px;
 }
 
-th {
-  text-align: center;
+#ratio_chart {
+  height: 400px;
 }