OZG-5402 create nachrichten-manager-interface

.gitignore

.mvn/wrapper/MavenWrapperDownloader.java

.mvn/wrapper/maven-wrapper.jar

.mvn/wrapper/maven-wrapper.properties

Jenkinsfile

LICENSE

mvnw

nachrichten-manager-interface/pom.xml

...anager-interface/src/main/protobuf/antragraum.model.proto

...hten-manager-interface/src/main/protobuf/antragraum.proto

...ten-manager-interface/src/main/protobuf/email.model.proto

nachrichten-manager-interface/src/main/protobuf/email.proto

...-manager-interface/src/main/protobuf/postfach.model.proto

...ichten-manager-interface/src/main/protobuf/postfach.proto