puls4 Add new extractor

youtube_dl/extractor/__init__.py

@@ -373,6 +373,7 @@ from .pornotube import PornotubeIE
 from .pornoxo import PornoXOIE
 from .promptfile import PromptFileIE
 from .prosiebensat1 import ProSiebenSat1IE
+from .puls4 import Puls4IE
 from .pyvideo import PyvideoIE
 from .quickvid import QuickVidIE
 from .r7 import R7IE