[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.

otherbot/otherbot.py

@@ -2,7 +2,9 @@ import discord
 from redbot.core import commands, checks, Config
 
 
-class Otherbot:
+BaseCog = getattr(commands, "Cog", object)
+
+class Otherbot(BaseCog):
     def __init__(self, bot):
         self.bot = bot
         self.config = Config.get_conf(self, 2730321001, force_registration=True)