Feature Request: Ignore files in .gitignore by default

[rdgd]

It would be good to make the assumption that we don't want to analyze files that are specified in .gitignore by default. The reasoning for this is that most of the time the files specified in .gitignore are third party, IDE generated, built files which may contain content that the developer isn't in direct control over.

However, it would also be good to add a flag which allows the developer to specify that they do not wish to ignore these files for whatever edge case they might be dealing with.