Changes

Summary

1. Add interface type to channel types (#2567) (commit: 217bea1) (details)

Commit 217bea105a1047504819b76e1f378a3c1d2a6979 by noreply Add interface type to channel types (#2567) (commit: 217bea1)
	src/main/java/net/dv8tion/jda/api/entities/channel/ChannelType.java (diff)
	src/main/java/net/dv8tion/jda/api/entities/channel/concrete/GroupChannel.java