Updated openapi.yaml to match to changes in get data node API

  1. updated the pom version to 3.0.0-SNAPSHOT
  2. modified the examples for get data node api to match the post api.

Issue-ID: CPS-865
Signed-off-by: puthuparambil.aditya <aditya.puthuparambil@bell.ca>
Change-Id: Icf03522e9ba7fb9c245fd9f09b3eb8bb6f3ee60d
diff --git a/cps-ncmp-rest/pom.xml b/cps-ncmp-rest/pom.xml
index 26b83be..b3ae81b 100644
--- a/cps-ncmp-rest/pom.xml
+++ b/cps-ncmp-rest/pom.xml
@@ -27,7 +27,7 @@
     <parent>
         <groupId>org.onap.cps</groupId>
         <artifactId>cps-parent</artifactId>
-        <version>2.1.0-SNAPSHOT</version>
+        <version>3.0.0-SNAPSHOT</version>
         <relativePath>../cps-parent/pom.xml</relativePath>
     </parent>