Updated git submodules
Project: appc master
f9b6ffd65bce160c6887c8c8b586f6d59f20d201
Unit Test Coverage
Unit Tests for:
1. Constants.java
2. DataReaderException.java
3. DgResolverException.java
4. FlowKey.java
5. VnfExecutionInternalException.java
Sonar-Link:
https://sonar.onap.org/code?id=org.onap.appc%3Aappc&selected=org.onap.appc%3Aappc-dg-common%3Asrc%2Fmain%2Fjava%2Forg%2Fonap%2Fappc%2Fdg%2Fcommon%2Fimpl
Change-Id: Ib3839ce2eb44b6f2e8b530696f4e4354e61df3d4
Issue-ID: APPC-756
Signed-off-by: shubhada <SV00449682@techmahindra.com>