[FR] Support multiple hashing methods when processing evidence in register evidence function

[mlcirosec]

Product: dfir-iris / iris-web
version: v2.4.15

Is your feature request related to a problem? Please describe.
As of today, the register evidence function "process" only seems to calculate a MD5 hash of provided files.

I'd like to see the possibility to choose or default to other, more recent hashing algorithms, like SHA256 or even sHA1. While there is no technical limitation to just manually overwrite the value in the Hash input field after automatic processing, this is error prone and easily omitted by analysts.

Describe the solution you'd like
Feature request:

• provide an option to choose from other hashing algorithms than MD5 when registering evidence via the "Process" functionality in the web UI
• alternatively, make the hashing algorithm configurable on a per-case basis when creating a case
• alternatively, make the hashing algorithm configurable by IRIS admins globally

Describe alternatives you've considered
Using the API or python client may enable us to use a hashing algorithm of our choosing. However, this actually breaks the flow / experience when working with the web UI: one would need to switch front-ends just to overcome an unsatisfying situation.