OZG-94 setup interface and server project

.gitignore

pluto-interface/pom.xml

pluto-interface/src/main/protobuf/vorgang.proto

pluto-server/.mvn/wrapper/MavenWrapperDownloader.java

pluto-server/.mvn/wrapper/maven-wrapper.jar

pluto-server/.mvn/wrapper/maven-wrapper.properties

pluto-server/mvnw

pluto-server/mvnw.cmd

pluto-server/pom.xml

.../main/java/de/itvsh/ozg/pluto/PlutoServerApplication.java

pluto-server/src/main/resources/application.properties

.../java/de/itvsh/ozg/pluto/PlutoServerApplicationTests.java