Merge branch 'develop' of https://labs.etsi.org/rep/tfs/controller into feat/hackfest3

src/tests/scenario3/l3/deploy_specs.sh

src/tests/scenario3/optical/deploy_specs.sh

...tests/tools/mock_mw_sdn_ctrl/scenario/microwave_deploy.sh

src/ztp/.dockerignore

src/ztp/.env.example

src/ztp/.gitignore

src/ztp/.gitlab-ci.yml

src/ztp/.java-version

src/ztp/.mvn/wrapper/MavenWrapperDownloader.java

src/ztp/.mvn/wrapper/maven-wrapper.jar

src/ztp/.mvn/wrapper/maven-wrapper.properties

src/ztp/Dockerfile

src/ztp/README.md

src/ztp/mvnw

src/ztp/mvnw.cmd

src/ztp/pom.xml

src/ztp/src/main/docker/Dockerfile.multistage.jvm

src/ztp/src/main/java/eu/teraflow/ztp/ContextSubscriber.java

src/ztp/src/main/java/eu/teraflow/ztp/Serializer.java

...tp/src/main/java/eu/teraflow/ztp/SimpleLivenessCheck.java