Merge branch 'f-response-log-format' into 'dev'

CHANGELOG.md

conf/core/log4j2-default.properties

conf/core/server.conf

src/main/java/org/caosdb/server/CaosDBServer.java

src/main/java/org/caosdb/server/ServerProperties.java

src/main/java/org/caosdb/server/grpc/LoggingInterceptor.java

...osdb/server/logging/log4j/CustomConfigurationFactory.java