Cached group metadata by default, use to prevent redundant requests to WA & speed up msg sending

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[whiskeysockets-bot]

Thanks for your contribution.

The next step is to wait for review and approval to merge it to main repository

The community can help reacting with a thumb up (:thumbsup:) for approval and rocket (:rocket:) for who has tested it.

To test this PR you can run the following command below:

# NPM
npm install @whiskeysockets/baileys@programadorbob/Baileys#l1
# YARN v2
yarn add @whiskeysockets/baileys@programadorbob/Baileys#l1