isIgnored

• If includes and excludes are not specified, always return true.

• If includes is specified but excludes is not, return false iff path matches any includes.

• If includes is not specified but excludes is, return true iff path matches any excludes.

• If includes and excludes are both specified, return false iff path matches any includes and path does not match any excludes.

Runs isIgnored against a ktFile based on its absolutePath.