Add throbber while waiting for builds to load

static/js/directives/components/pages/repo-page/throbber.tsx

@@ -0,0 +1,15 @@
+import * as React from 'react';
+import * as moment from "moment";
+
+export default class Throbber extends React.Component<any, any> {
+  render () {
+    return(
+      <div className="co-m-loader co-an-fade-in-out rp-throbber">
+        <div className="co-m-loader-dot__one"></div>
+        <div className="co-m-loader-dot__two"></div>
+        <div className="co-m-loader-dot__three"></div>
+      </div>
+    );
+  }
+}
+