WIP: string ids

conf/core/jobs.csv

...n/java/org/caosdb/server/database/BackendTransaction.java

...tabase/backend/implementation/MySQL/MySQLGetChildren.java

...backend/implementation/MySQL/MySQLInsertSparseEntity.java

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

...osdb/server/database/backend/transaction/GetChildren.java

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

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

...caosdb/server/jobs/core/CheckChildDependencyExistent.java

...sdb/server/jobs/core/CheckDependenciesBeforeDeletion.java