[cloudflarestream] Add support for cloudflare streams (closes #16375)

youtube_dl/extractor/extractors.py

@@ -195,6 +195,7 @@ from .clippit import ClippitIE
 from .cliprs import ClipRsIE
 from .clipsyndicate import ClipsyndicateIE
 from .closertotruth import CloserToTruthIE
+from .cloudflarestream import CloudflareStreamIE
 from .cloudy import CloudyIE
 from .clubic import ClubicIE
 from .clyp import ClypIE