[GameJolt] Add extractors (#2036)

Authored by: MinePlayersPE

yt_dlp/extractor/extractors.py

@@ -511,6 +511,14 @@ from .gab import (
 )
 from .gaia import GaiaIE
 from .gameinformer import GameInformerIE
+from .gamejolt import (
+    GameJoltIE,
+    GameJoltUserIE,
+    GameJoltGameIE,
+    GameJoltGameSoundtrackIE,
+    GameJoltCommunityIE,
+    GameJoltSearchIE,
+)
 from .gamespot import GameSpotIE
 from .gamestar import GameStarIE
 from .gaskrank import GaskrankIE