Merge branch 'f-grpc-f-mixed-write-transactions' into 'f-grpc-dev'

caosdb-proto

pom.xml

src/main/java/org/caosdb/server/entity/wrapper/Property.java

.../org/caosdb/server/grpc/EntityTransactionServiceImpl.java

src/main/java/org/caosdb/server/jobs/core/CheckParValid.java

.../java/org/caosdb/server/transaction/WriteTransaction.java

src/main/java/org/caosdb/server/utils/ServerMessages.java

src/test/java/org/caosdb/server/transaction/UpdateTest.java