Support Filtering Logs and Content by Package Name

[EdbertChan]

We are migrating build-systems and plan to use Diffuse for comparison between two APKs built by different build systems (Buck and Bazel). As part of this, some formatting in the output to account for significant content helps with parsing since the list of files that are different would be enormous.

Is this a use-case you'd be interested in us upstreaming?