Fixing naming issues in files:
https://sonar.onap.org/code?id=org.onap.appc%3Aappc&selected=org.onap.appc%3Aappc-design-services-provider%3Asrc%2Fmain%2Fjava%2Forg%2Fonap%2Fappc%2Fdesign%2Fdata%2FArtifactInfo.java
https://sonar.onap.org/code?id=org.onap.appc%3Aappc&selected=org.onap.appc%3Aappc-design-services-provider%3Asrc%2Fmain%2Fjava%2Forg%2Fonap%2Fappc%2Fdesign%2Fdata%2FDesignInfo.java
https://sonar.onap.org/code?id=org.onap.appc%3Aappc&selected=org.onap.appc%3Aappc-design-services-provider%3Asrc%2Fmain%2Fjava%2Forg%2Fonap%2Fappc%2Fdesign%2Fdata%2FDesignRequest.java
https://sonar.onap.org/code?id=org.onap.appc%3Aappc&selected=org.onap.appc%3Aappc-design-services-provider%3Asrc%2Fmain%2Fjava%2Forg%2Fonap%2Fappc%2Fdesign%2Fdata%2FStatusInfo.java