[megatvcom] Add extractors (#1980)

Authored by: zmousm

yt_dlp/extractor/extractors.py

@@ -1326,6 +1326,10 @@
     GlomexIE,
     GlomexEmbedIE,
 )
+from .megatvcom import (
+    MegaTVComIE,
+    MegaTVComEmbedIE,
+)
 from .rutv import RUTVIE
 from .ruutu import RuutuIE
 from .ruv import RuvIE