Add p4runtime shell and trex dependencies on Docker environment

Change-Id: Ic80a6cfe77d49c12890dc80e789492142a9716b3
diff --git a/TestON/docker/.gitignore b/TestON/docker/.gitignore
index ddbd53f..f0bcaa1 100644
--- a/TestON/docker/.gitignore
+++ b/TestON/docker/.gitignore
@@ -1,3 +1,4 @@
 fs/home/jenkins/*
+!fs/home/jenkins/.ipython
 fs/usr/local
 fs/tmp