Respect "istanbul ignore" comments

Hi there,

I’d like to suggest / request a feature - namely, when the scanner encounters an istanbul ignore comment, e.g.

// istanbul ignore file

or for a specific code block:

// istanbul ignore next

and so forth, that the scanner factors this in and that the pertinent code / file does not appear in the coverage analysis of sonarQube afterwards. Currently I have to manually add sonar.coverage.exclusions for files that cannot be tested.

I can’t find anything about what this comment usage is for. What does istanbul mean in this scenario? Is it a program or something?