phase1 opa pdp changes

For details on scope and implementation, please check.
https://lf-onap.atlassian.net/wiki/spaces/DW/pages/51150925/OPA+PDP
Code Coverage Total: 70.8%

Issue-ID: POLICY-5156
Change-Id: Ied07ee1596e9f447183fb715baaa68c704a9fe99
Signed-off-by: gururajarao79 <gb00566633@techmahindra.com>
diff --git a/build/Makefile b/build/Makefile
new file mode 100644
index 0000000..d459215
--- /dev/null
+++ b/build/Makefile
@@ -0,0 +1,4 @@
+SHELL := /bin/bash
+
+build:
+	./build_image.sh