Core user data and leaderboard commands.

Added flexibility to data `update_where`.
Added interactive utils, with improved pager.
Added user data table, with caching and transactional interface.
Added `topcoins` command to `Economy`
Added `top` command to `Study`

bot/main.py

@@ -2,6 +2,8 @@ from meta import client, conf, log
 
 import data  # noqa
 
+import core # noqa
+
 import modules  # noqa
 
 # Initialise all modules