Enhancement: Include and exclude multiple paths

[ufrshubham]

I'd like to have a way to tell dcdg to search into multiple directories and at the same time exclude multiple directories relative to the root directory. My use case is this flame engine's repo

Directories I want to include:
lib/src/components/

Directories I want to exclude:
lib/src/components/input/
lib/src/components/mixins/

[glesica]

This would essentially extend the --search-path functionality. It's a good idea.