Add /snap/bin in case it is missing

This is a fix to bug 863
https://osm.etsi.org/bugzilla/show_bug.cgi?id=863

Change-Id: Iccbe1de7ca4a36960f450de918fcad67364b7d3d
Signed-off-by: Dominik Fleischmann <dominik.fleischmann@canonical.com>
diff --git a/installers/full_install_osm.sh b/installers/full_install_osm.sh
index 38e50c6..090b990 100755
--- a/installers/full_install_osm.sh
+++ b/installers/full_install_osm.sh
@@ -192,6 +192,7 @@
             fi
             remove_k8s_namespace $OSM_STACK_NAME
         else
+
             remove_stack $OSM_STACK_NAME
             remove_stack osm_elk
             uninstall_prometheus_nodeexporter
@@ -693,6 +694,7 @@
     echo "Installing juju"
     sudo snap install juju --classic
     [ -z "$INSTALL_NOLXD" ] && sudo dpkg-reconfigure -p medium lxd
+    [[ ":$PATH": != *":/snap/bin:"* ]] && PATH="/snap/bin:${PATH}"
     echo "Finished installation of juju"
     return 0
 }