Patch/guild preview
Created by: Lachee
Summary
Added the new Guild Previews from https://github.com/discordapp/discord-api-docs/pull/1405/files
Details
Added new entity and API calls
Changes proposed
Added GuildPreview entity, Added GetGuildPreviewAsync in the ApiClient and the DiscordClient Added /preview to the list of endpoints
Notes
Unsure if this is fully implemented. Some in DAPI have stated its not 100% working yet.