* api: Adapt Client.EditMessage, SendEmbedReply, and SendMessageReply to take in
multiple embeds
* api: Fix incorrect use of Client.EditMessage
* api: Make EditMessage omit empty content or embeds from payload
api.{Send,Edit}MessageData and their equivalents in package api/webhook
have been updated to add some fields added in Discord API v9.
(webhook.Client).EditMessage now also returns a message, because that
endpoint returns a message on success.
This commit gets rid of all the code that previously managed different
voice sessions in different guilds. This is because there is rarely ever
a need for this, and most bots that need this could do their own
keeping.
This change, although removes some features off of the package, adds a
lot of clarity on what to do exactly when it comes to connecting to a
voice channel.
In order to make the migration process a bit easier, an example has been
added which guides through using the voice.Session API.
Maximilian von Lindern
samhza
diamondburned
Tadeo Kondrak