Minimize communication with Discord for performance and aesthetic gain, and pretty things up with embeds (optional) and more symbols

[twilsonco]

As it says in my modified readme:

MODIIFIED FROM nwithan8's version in the following ways:

• Faster and more efficient thanks to minimal communication with Discord
  • Edit a single message with updated information rather than delete and replace (but replace if message isn't the bottom-most message in the channel)
  • Only edit/add message if message contents differ from previous message, so almost all communication with Discord is eliminated
  • Add/remove individual reactions only when neessary
• Use of embeds (optional) and more symbols for more aesthetic output
• Use convenient units for bitrate reporting
• Include media type in stream info