Add Homebrew cask to have a Sniffnet.app in Applications

[eugenesvk]

Is there an existing issue for this?

• [X] I have searched the existing issues.

Describe the solution you'd like

In addition to having Homebrew formula for cli, have a Homebrew cask to distribute .dmg files that install an app bundle in Applications

Is your feature request related to a problem?

With a formula Homebrew install you need a terminal to launch the app as there is no Sniffnet.app installed

[GyulyVGC]

@chenrui333 do you think is doable? Asking you since you already maintain the formula.

All the needed material is in this folder and the workflow section for the dmg can be found here.

PS: note that the wrapper is needed to launch the app with privileges, otherwise it wouldn't be possible to inspect a network adapter