refactor: Split stats module from study.

bot/modules/stats/data.py

@@ -0,0 +1,13 @@
+from data import Table
+
+
+profile_tags = Table('member_profile_tags', attach_as='profile_tags')
+
+
+@profile_tags.save_query
+def get_tags_for(guildid, userid):
+    rows = profile_tags.select_where(
+        guildid=guildid, userid=userid,
+        _extra="ORDER BY tagid ASC"
+    )
+    return [row['tag'] for row in rows]