[feature request] Add Subsystem Information to BFInterceptedLog Interface

[R1Daneel]

I would like to enable the NSLog logging and send to BugFender only the logs related to a specific dependency. For us, the easiest way to catch only the logs of a single library is to filter by using subsystem, but currently, the interface BFInterceptedLog does not exposes that information. Would it be possible to add this capability?

Versione of the library used: 2.0.0