Graceful HDF5 file handler always fails to close the file when CTRL+C

[siemdejong]

Describe the bug
The file is never closed well when interrupting with ctrl+c.

^CERROR:root:Received SIGINT or SIGTERM! Finishing this block, then exiting.                                                                                                
  5%|██████▋                                                                                                                                | 5/101 [00:10<03:25,  2.14s/it]
ERROR:dpat.data.pmchhg_h5_dataset:Something went wrong with closing the file. Please inspect the file and delete if broken.

Expected behavior
Close the file well.

Desktop (please complete the following information):

• OS: [e.g. Linux, Windows, macOS]
• DPAT version 4.3.1