#101 Adds reason to blacklist

[SnowyJaguar1034]

Summary I updated the schemas.sql to add a blocked table which logs blocked member IDs, the guild their blocked from and the reason they were blocked.

I then updated core.py to accept a reason argument as part of the blacklist command. I updated the command to add in functionality of writing to the new blocked table however I kept in the old functionality for now. and .

I then subsequently updated direct_message.py, modmail_channel.py, and tools.py to be able to read the blocked table entries in any places it was already checking the blacklist entries of the data table.

Finally I updated core.py's whitelist and blacklistclear commands to remove one and all entries respectively.

Related issue(s) #101 Add a reason for blocking users

Additional context Add any other context or screenshots about the pull request here.

[SnowyJaguar1034]

I hope I got all of the times blacklist was used

[chamburr]

Closing due to age.