add security-util-lib to Onap

This lib provides security layer filters and mainly used in sdc project.
It base on third party projects e.g. Cadi and Portal

Issue-ID: SDC-2656
Signed-off-by: Yuli Shlosberg <ys9693@att.com>
Change-Id: Iae1a78f0960386e9bdc0994fbac09a24e041cb54
diff --git a/.gitignore b/.gitignore
index 64189eb..df2f954 100644
--- a/.gitignore
+++ b/.gitignore
@@ -10,3 +10,4 @@
 *.log
 .idea/
 *.iml
+*.orig