Add an optional API worker for CommonCrawl

[postmodern]

Add an optional built-in API worker for CommonCrawl. Note, their REST API requires multiple requests.

Example Usage

• https://github.com/hueristiq/xurlfind3r/blob/2a369c4b050e6018a36a69146f76ad22fbd3683b/pkg/xurlfind3r/sources/commoncrawl/commoncrawl.go#L95-L288