Add more replies to 8ball / rate commands

[13xforever]

Let's make this bot as great as it could ever be. The only requirement is to keep the balance of positive/neutral/negative connotations, erring on the side of being more positive.

Current lists can be found here: Misc.cs

Please keep these points in mind:

• Try to keep slight spelling variations to a minimum, we need quality diverse responses
• Try to keep positive-to-neutral-to-negative ratio around 3:2:3 to 3:2:2
• Please update response counters in the comments accordingly, for easier tracking

[cgunston]

I've added https://github.com/RPCS3/discord-bot/pull/419 - Please could you review.