Memboard stuff

[circuitsacul]

Maybe maybe maybe

• Add is_memeboard and memeboard_rating fields to Starboard
• Add /memeconfig command with enable and disable options
• Add /meme command that fetches a random message from memeboards.
• Add hide_in_meme or smth to either User or Member objects
• Add way to disable/enable ^
• If a user/member is anonymous, hide their username in the author field in /meme
• Add blocked_memes or smth to Starboards so that I can block bad memeboards
• Add Report Message button to /meme which reports stuff to me.
• Create SBMessageRef model with message_id and sb_message_id fields
• Make /meme and /random create instance of SBMessageRef
• Make get_orig_message check SBMessageRef first
• If an SBMessageRef appears on the starboard, alter how it is displayed (hide author, should guild, etc).

Some way to upvote/downvote that affects a starboards memboard_rating.