DOC: docs for new code

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

src/main/java/caosdb/server/database/BackendTransaction.java

src/main/java/caosdb/server/database/DatabaseUtils.java

...tabase/backend/implementation/MySQL/MySQLGetAllNames.java

...ckend/implementation/MySQL/MySQLRetrieveSparseEntity.java

...b/server/database/backend/interfaces/GetAllNamesImpl.java

src/main/java/caosdb/server/entity/EntityInterface.java

src/main/java/caosdb/server/jobs/core/RetriveAllNames.java

...resource/transaction/handlers/GetNamesRequestHandler.java