feature (timer): Core pomodoro system.

bot/modules/study/timers/data.py

@@ -0,0 +1,14 @@
+from data import RowTable
+
+
+timers = RowTable(
+    'timers',
+    ('channelid', 'guildid',
+     'focus_length', 'break_length',
+     'inactivity_threshold',
+     'last_started',
+     'text_channelid',
+     'channel_name', 'pretty_name'),
+    'channelid',
+    cache={}
+)