Support dot glob option

[timhirsh]

Problem

I'm trying to match all files with the .yml extension. Some are contained in hidden directories that are arbitrarily nested. Eg:

path/to/.hiddenDir/file.yml

or

path/to/.hiddenFile.yml

Neither case above would be captured by the **/*.yml path in my include config.

Request

Please allow for more flexible matching of hidden files & directories. For example, node-glob supports an option to treat dots as normal characters, which would make it trivial to handle the situations above using a single pattern instead of multiple variations that require knowledge of the directory structure. I'd like for file extension matching to be agnostic of directory structure so that license checking isn't accidentally missed in newly added areas of the repo.

Thanks!