Create cog disabling API (#4043)

* create cog disbale base

* Because defaults...

* lol

* announcer needs to respect this

* defaultdict mishap

* Allow None as guild

- Mostly for interop with with ctx.guild

* a whitespace issue

* Apparently, I broke this too

* Apply suggestions from code review

Co-authored-by: jack1142 <6032823+jack1142@users.noreply.github.com>

* This can probably be more optimized later, but since this is a cached value, it's not a large issue

* Report tunnel closing

* mod too

* whitespace issue

* Fix Artifact of prior method naming

* these 3 places should have the check if i understood it correctly

* Announce the closed tunnels

* tunnel oversight

* Make the player stop at next track

* added where draper said to put it

* Apply suggestions from code review

Co-authored-by: jack1142 <6032823+jack1142@users.noreply.github.com>

Co-authored-by: jack1142 <6032823+jack1142@users.noreply.github.com>
Co-authored-by: Drapersniper <27962761+drapersniper@users.noreply.github.com>

redbot/cogs/mod/events.py

@@ -79,6 +79,10 @@ class Events(MixinMeta):
         author = message.author
         if message.guild is None or self.bot.user == author:
             return
+
+        if await self.bot.cog_disabled_in_guild(self, message.guild):
+            return
+
         valid_user = isinstance(author, discord.Member) and not author.bot
         if not valid_user:
             return
@@ -110,6 +114,9 @@ class Events(MixinMeta):
     @commands.Cog.listener()
     async def on_member_update(self, before: discord.Member, after: discord.Member):
         if before.nick != after.nick and after.nick is not None:
+            guild = after.guild
+            if (not guild) or await self.bot.cog_disabled_in_guild(self, guild):
+                return
             async with self.config.member(before).past_nicks() as nick_list:
                 while None in nick_list:  # clean out null entries from a bug
                     nick_list.remove(None)

redbot/cogs/mod/kickban.py

@@ -142,6 +142,9 @@ class KickBanMixin(MixinMeta):
                 if not guild.me.guild_permissions.ban_members:
                     continue
 
+                if await self.bot.cog_disabled_in_guild(self, guild):
+                    continue
+
                 async with self.config.guild(guild).current_tempbans() as guild_tempbans:
                     for uid in guild_tempbans.copy():
                         unban_time = datetime.utcfromtimestamp(