enh(io): add convenient feature to serialization

Description

• keep the file path of the original DICOM file
• getter for archive file path
• getter for the default (de)serializer function which allow us to call them in a custom (de)serializer
• fix a typo / coding style normalization (set_password -> setPassword)
• update unit tests

Closes #1039 (closed)

How to test it?

• launch unit test