[extractor/triller] Add extractor (#4712)

Closes #4703
Authored by: bashonly

yt_dlp/extractor/_extractors.py

@@ -1800,6 +1800,10 @@ from .toongoggles import ToonGogglesIE
 from .toutv import TouTvIE
 from .toypics import ToypicsUserIE, ToypicsIE
 from .traileraddict import TrailerAddictIE
+from .triller import (
+    TrillerIE,
+    TrillerUserIE,
+)
 from .trilulilu import TriluliluIE
 from .trovo import (
     TrovoIE,