Suppressing warnings in 3rd party (AssetStore) code?

I have a number of assets installed, and it seems that most have some number of compiler warnings. I don’t like having warnings in my project, as I don’t want to miss any warnings in my own code, so I’m going through an manually suppressing the warnings in the 3rd party code. I don’t like doing this, though, as if I update the package I’ll need to do it again, and it’s a slow process.

Is there some better solution to disabling warnings in an entire directory? Or some other way to disable warnings in this code which I didn’t write?

Even packages generate warnings, and those are more annoying to deal with, as they don’t open easily in Visual Studio: