[V3] RC1 Compliance, fixes

RC1 changes on all cogs. Tools has inrole fixed, now will display appropriately if 0 people are in the specified role. Timezone: removed the time place command as timezoneapi.io has changed to a paid service.

away/away.py

@@ -2,7 +2,9 @@ import discord
 from redbot.core import Config, commands, checks
 
 
-class Away:
+BaseCog = getattr(commands, "Cog", object)
+
+class Away(BaseCog):
     """Le away cog"""
 
     default_global_settings = {"ign_servers": []}