[ae] Add extractor import

youtube_dl/extractor/__init__.py

@@ -15,6 +15,7 @@ from .adobetv import (
     AdobeTVVideoIE,
 )
 from .adultswim import AdultSwimIE
+from .ae import AEIE
 from .aftonbladet import AftonbladetIE
 from .airmozilla import AirMozillaIE
 from .aljazeera import AlJazeeraIE