[Feature]: Add saz packet dump support (Fiddler Session Archive Zip)

[jonbarrow]

Checked Existing

• I have checked the repository for duplicate issues.

What feature do you want to see added?

Add the ability to load saz dumps into the viewer and display their (relevant) contents.

Why do you want to have this feature?

saz is the file format used by Fiddler, a very popular and free proxy server. Currently this would only be useful for displaying HPP packets, which are sent over HTTP rather than PRUDP.

Any other details to share? (OPTIONAL)

It's possible that saz support could eventually be used for PRUDPLite traffic, however it is unknown if Fiddler can properly export WebSocket messages.

Fiddler is also able to capture gRPC sessions, potentially making it useful for NPLN captures.