CreateCategoryAsync naming inconsistency #1262
Description
Summary
In the current design (2.x), CreateCategoryAsync under the interface IGuild should be renamed to CreateCategoryChannelAsync for better naming consistency, as this is the naming for the rest of the CreateXChannelAsync methods and is the name at the implementation level of such method (e.g. SocketGuild#CreateCategoryChannelAsync.
Due to the breaking nature of renaming the API/method, this is considered a 3.0 candidate.