WIP: entity-id

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

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

.../backend/implementation/MySQL/MySQLRegisterSubDomain.java

...er/database/backend/interfaces/RegisterSubDomainImpl.java

...rver/database/backend/interfaces/SetFileChecksumImpl.java

...ver/database/backend/transaction/GetFileRecordByPath.java

...er/database/backend/transaction/InsertEntityDatatype.java

.../database/backend/transaction/InsertEntityProperties.java

...rver/database/backend/transaction/InsertSparseEntity.java

...erver/database/backend/transaction/RegisterSubDomain.java

src/main/java/org/caosdb/server/entity/Entity.java

.../java/org/caosdb/server/entity/wrapper/EntityWrapper.java

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

src/main/java/org/caosdb/server/jobs/EntityFlagJob.java

...n/java/org/caosdb/server/resource/FileSystemResource.java

...rg/caosdb/server/resource/transaction/EntityResource.java

...n/java/org/caosdb/server/transaction/ChecksumUpdater.java

...aosdb/server/transaction/FileStorageConsistencyCheck.java

...caosdb/server/transaction/RetrieveSparseEntityByPath.java

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