More robust url regex for bigo plugin.
More robust url regex for bigo plugin.

chhe/streamlink,back-to/streamlink,wlerin/streamlink,beardypig/streamlink,bastimeyer/streamlink,javiercantero/streamlink,wlerin/streamlink,beardypig/streamlink,melmorabity/streamlink,bastimeyer/streamlink,streamlink/streamlink,gravyboat/streamlink,melmorabity/streamlink,javiercantero/streamlink,chhe/streamlink,streamlink/streamlink,gravyboat/streamlink,back-to/streamlink