Raid Updates

[jeremy-dentel]

This PR does a few various things:

• Adds a new !boss-tier command to find out what level raid boss something is.
• Adds a new setting to run raid bosses strictly via the database
• Adds a new !populate-raid-bosses command that does an initial populate of the raid boss database.
• Adds a new !auto-set command that allows you to specify the default raid boss for a tier and sets it every time a raid is reported for that tier.
• Create a new channel name structure based on hatch/end time of a raid.
• Only show the raid boss once it's been hatched in the channel name
• Automatically update channel name based on actions (setting hatch/end time) and during routine clean up based on hatch and end time.
• Update error information to add some QOL clarifications.
• Fix !raid-boss logic
• Set Alolan Exeggutor to a Tier 2 boss