[dvtv] Add new extractor

youtube_dl/extractor/__init__.py

@@ -88,6 +88,7 @@ from .dotsub import DotsubIE
 from .dreisat import DreiSatIE
 from .drtuber import DrTuberIE
 from .drtv import DRTVIE
+from .dvtv import DVTVIE
 from .dump import DumpIE
 from .defense import DefenseGouvFrIE
 from .discovery import DiscoveryIE