[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.

rndstatus/rndstatus.py

@@ -4,7 +4,9 @@ from random import choice as rndchoice
 import time
 
 
-class RndStatus:
+BaseCog = getattr(commands, "Cog", object)
+
+class RndStatus(BaseCog):
     """Cycles random statuses or displays bot stats.
 
     If a custom status is already set, it won't change it until