add new SNAPSHOT exclusions

Change-Id: I84ab279c997ac861a9df1910486f91caa0182b48
diff --git a/tools/build/onos-validate-change-version.excludes b/tools/build/onos-validate-change-version.excludes
index 57f57fb..f47714b 100755
--- a/tools/build/onos-validate-change-version.excludes
+++ b/tools/build/onos-validate-change-version.excludes
@@ -35,3 +35,5 @@
 \./pom.xml.versionsBackup
 \./tools/build/buck-publish-api
 \./tools/build/buck-plugin/BUCK
+\./apps/ofagent/pom.xml
+\.core/store/primitives/src/main/java/org/onosproject/store/primitives/resources/impl/AtomixAtomicCounterMapCommands.java