Add rnib functionality
- The *_pb2.py files were added that compiled by protoc
- `get_list_gnb_ids`, `get_list_enb_ids` added to the _BaseXapp
- rnib repo added as a submodule

Issue-ID: RIC-788

Signed-off-by: yc999.jang <yc999.jang@samsung.com>
Change-Id: Id5c3392592422597b939fccda902c04369566e9e
diff --git a/Dockerfile-Unit-Test b/Dockerfile-Unit-Test
index ee754ce..6e6497d 100644
--- a/Dockerfile-Unit-Test
+++ b/Dockerfile-Unit-Test
@@ -28,7 +28,7 @@
 # copies
 COPY ricxappframe/ /tmp/ricxappframe
 COPY tests/ /tmp/tests
-COPY setup.py tox.ini LICENSE.txt /tmp/
+COPY setup.py tox.ini LICENSE.txt .coveragerc /tmp/
 WORKDIR /tmp
 
 # Run the unit tests