Change lookup label and internal identifier of subjects and und subject state

Lookup label: A label that will make it easier to find the specimen, e.g. using the short name of the dataset
Internal identifier: Use ID from file names, if clearly present in the files, if not create your own IDs

**Example** 
**Subject:**
lookup label: 7t_trt_sub-01
internal identifier: sub-01

**Subject-state:**
lookup label: 7t_trt_sub-01_state-01
internal identifier: sub-01_state-01 