[extractor/swearnet] Add extractor (#5371)

Authored by: HobbyistDev

yt_dlp/extractor/_extractors.py

@@ -1763,6 +1763,7 @@ from .svt import (
     SVTPlayIE,
     SVTSeriesIE,
 )
+from .swearnet import SwearnetEpisodeIE
 from .swrmediathek import SWRMediathekIE
 from .syvdk import SYVDKIE
 from .syfy import SyfyIE