Feature request: Get detailed metadata from expect matchers in reporters

I'd like to generate HTML reports from [jest-image-snapshot](https://github.com/americanexpress/jest-image-snapshot) with the diff images.

But doing it from a customer Jest reporter does not seem to be possible because because custom matchers such as the `toMatchImageSnapshot` cannot pass extra metadata (path to the snapshot diff file) to the reporters.

I'd like to be able to return the filename [here](https://github.com/americanexpress/jest-image-snapshot/blob/928f69c7b183ffdb7eeb7fca8ba7172813fc1b2a/src/index.js#L57) and read it somehow in a `onTestResult()` method of a reporter.

Ref https://github.com/americanexpress/jest-image-snapshot/issues/13

Start with the linked jest-image-snapshot src/index.js location and the Jest reporter onTestResult() entry point. Trace how toMatchImageSnapshot results reach custom reporters and determine how the diff filename could be exposed as matcher metadata. Done means a reporter can access that metadata when generating an HTML report, with coverage for the behavior identified during the investigation.

Written by the indexing model from the issue text.