Add a command to create and organize events

[Gelean]

Replace Facebook events

[Gelean]

https://top.gg/bot/475744554910351370

[Gelean]

https://sesh.fyi/

[Gelean]

This is being handled natively in Discord now with server events. There should be some functionality to manage these with Discord.js in the near future

[Gelean]

discordjs/discord.js#6493

[Gelean]

https://discord.js.org/#/docs/main/stable/class/GuildScheduledEvent