Add fake env support to baremetal

Use bm_poseur to create VM and network bridge
so that, in the absence of physical hardware,
baremetal driver still has something to manipulate.

Change-Id: Id80ede13a35e4380f358b47f08d41ff98ea9d70f
diff --git a/stack.sh b/stack.sh
index 53b892f..87c193a 100755
--- a/stack.sh
+++ b/stack.sh
@@ -1145,6 +1145,9 @@
     echo_summary "Preparing for nova baremetal"
     prepare_baremetal_toolchain
     configure_baremetal_nova_dirs
+    if [[ "$BM_USE_FAKE_ENV" = "True" ]]; then
+       create_fake_baremetal_env
+    fi
 fi
 
 # Launch Services