Improve centralized function by warnings and moving code to FCN

Lemmer, Janrequested to merge
72-create-warning-that-linked-hdf5-can-only-be-moved-with-their-respective-master-file into development

Reasons: Clearness, eliminate unwanted dependencies, improve readability

ID is also stored in dataObj so no need to pass it individually

Closes #72 (closed)

Merge request reports