Flag to enable inventory'ing the SYSVOL files (including saving them)

[CasperGN]

Is your feature request related to a problem? Please describe.
N/A

Describe the solution you'd like
While searching sysvol it could be beneficial to save all the files for later offline analysis as well as checksum'ing (for now sha256 is considered) the files. The sum should be dumped in a file {dc-server}-inventory.txt in the format:

$ cat some_dc-inventory.txt
...
SYSVOL/SOME/PATH/TO/FILE.XML: <sha256sum>
SYSVOL/SOME/PATH/TO/OTHER_FILE.XML: <sha256sum>
...

Describe alternatives you've considered
N/A

Additional context
Feature requested to further enhance the offline analysis of file content from SYSVOL.
The feature should be implemented as seperate function since it would be beneficial to utilize in #16 when the enhancement is implemented.