Oparent 2.0 migration

Add Oparent 2.0 as parent project, add missing license headers.

Change-Id: Ia0f3cfbb1c51fe0c3e0ca60cd560ddaad4395ee1
Issue-ID: SDC-2438
Signed-off-by: Piotr Darosz <piotr.darosz@nokia.com>
diff --git a/pom.xml b/pom.xml
index 02740e5..0183299 100644
--- a/pom.xml
+++ b/pom.xml
@@ -6,6 +6,14 @@
 	<version>1.3.0-SNAPSHOT</version>
 	<name>sdc-dcae-d-dt-be-property</name>
 	<description>System Properties</description>
+
+	<parent>
+		<groupId>org.onap.oparent</groupId>
+		<artifactId>oparent</artifactId>
+		<version>2.0.0</version>
+		<relativePath/>
+	</parent>
+
 	<properties>
 		<!--nexus-->
 		<nexus.proxy>https://nexus.onap.org</nexus.proxy>
@@ -162,6 +170,15 @@
 					<serverId>ecomp-staging</serverId>
 				</configuration>
 			</plugin>
+
+			<plugin>
+				<artifactId>maven-checkstyle-plugin</artifactId>
+				<version>2.17</version>
+				<configuration>
+					<suppressionsLocation>checkstyle-suppressions.xml</suppressionsLocation>
+					<suppressionsFileExpression>checkstyle.suppressions.file</suppressionsFileExpression>
+				</configuration>
+			</plugin>
 		</plugins>
 	</build>
 	<repositories>