Make "internals" configurable

[goatslacker]

I was looking through the README and noticed this internal folder thing that acts sort of like node_modules.

Can we make this configurable? If there's a folder internal in my project I'd like for it to be included but still have node_modules excluded.

Refs:

02086cc#diff-5e0b92ae1f4819f9023cb45116668ef6R5
20018d5

PR?

[streamich]

The internals folder is excluded to hide stack traces from Node's /internal folder.

As I understand, the problem is that you have /internal folder in your project and the reporter hides stack traces from that?

In that case it is a bug, we should show stack traces from your folder but exclude only Node's /internal folder, if possible to discriminate between the two.