added build version support

.gitignore

build.sh

vipra-backend/pom.xml

...nd/src/main/java/de/vipra/rest/resource/InfoResource.java

vipra-backend/src/main/resources/buildNumber.properties

vipra-cmd/pom.xml

vipra-cmd/src/main/java/de/vipra/cmd/CommandLineOptions.java

vipra-cmd/src/main/java/de/vipra/cmd/Main.java

...cmd/src/main/java/de/vipra/cmd/option/VersionCommand.java

vipra-cmd/src/main/resources/buildNumber.properties

vipra-ui/app/html/about.html

vipra-util/pom.xml

vipra-util/src/main/java/de/vipra/util/BuildInfo.java

vipra-util/src/main/java/de/vipra/util/Constants.java

vipra-util/src/main/resources/buildNumber.properties