Merge branch 'faid/acceptanceTestNotification' into 'master'

.gitlab-ci.yml

NOTICE

devops/core-plus/pipeline/override-stages.yml

notification-acceptance-test/docs/README.md

notification-acceptance-test/pom.xml

...up/osdu/notification/api/PubsubEndpointGSADescriptor.java

...p/osdu/notification/api/PubsubEndpointHMACDescriptor.java

.../opengroup/osdu/notification/api/TestPushEndpointGsa.java

...opengroup/osdu/notification/api/TestPushEndpointHMAC.java

...ngroup/osdu/notification/config/OpenIDProviderConfig.java

...est/java/org/opengroup/osdu/notification/util/Config.java

.../java/org/opengroup/osdu/notification/util/Constants.java

...group/osdu/notification/util/DecodedContentExtractor.java

.../java/org/opengroup/osdu/notification/util/FileUtils.java

...java/org/opengroup/osdu/notification/util/HttpClient.java

...opengroup/osdu/notification/util/OpenIDTokenProvider.java

.../org/opengroup/osdu/notification/util/RestDescriptor.java

...a/org/opengroup/osdu/notification/util/ServicesUtils.java

.../java/org/opengroup/osdu/notification/util/TestUtils.java

.../org/opengroup/osdu/notification/util/TokenTestUtils.java