[meta] Add new extractor(closes #8789)

youtube_dl/extractor/extractors.py

@@ -425,6 +425,7 @@
 from .makertv import MakerTVIE
 from .matchtv import MatchTVIE
 from .mdr import MDRIE
+from .meta import METAIE
 from .metacafe import MetacafeIE
 from .metacritic import MetacriticIE
 from .mgoon import MgoonIE