Add static routes to NFDs in parallel

This allows setting up static routing in large
topologies in a reasonable time. Some timer values
are also reduced, seems to work fine to me

Change-Id: I112cfd216615a100db6dc18182db40ba614d83e6
diff --git a/requirements.txt b/requirements.txt
index 5c0596f..6e2edbd 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,4 @@
 python-igraph
 setuptools
-tqdm
\ No newline at end of file
+tqdm
+joblib