Improved file selection for PR reviews

There are certain types of files that just aren't worth spending the time doing a line-by-line review of. Compiled code, generated files, or lock files are great examples in many cases. But, not everyone has the same files that they'd like to skip. That's why we now support both inclusion and exclusion criteria in our configuration file, so you can make the PR review bot even faster and more focused by telling it what to skip, and what to always pay attention to. Learn more in our docs.