[Core] Multiple mod admin roles (#2783)

* Adds Schema versioning
  - Adds Migration tool
  - Adds tool to migrate to allow multiple admin and mod roles
  - Supports Multiple mod and admin roles

* Ensures migration is run prior to cog load and connection to discord

* Updates to not rely on singular mod/admin role id

* Update requires logic for multiple mod/admin roles

* Add new commands for managing mod/admin roles

* Feedback

Update strings
Update docstrings
Add aliases

* Use snowflakelist

* paginate

* Change variable name

* Fix mistake

* handle settings view fix

* Fix name error

* I'm bad at Ux

* style fix

redbot/cogs/reports/reports.py

@@ -84,18 +84,14 @@ class Reports(commands.Cog):
             await ctx.send(_("Reporting is now disabled."))
 
     async def internal_filter(self, m: discord.Member, mod=False, perms=None):
-        ret = False
-        if mod:
-            guild = m.guild
-            admin_role = guild.get_role(await self.bot.db.guild(guild).admin_role())
-            mod_role = guild.get_role(await self.bot.db.guild(guild).mod_role())
-            ret |= any(r in m.roles for r in (mod_role, admin_role))
-        if perms:
-            ret |= m.guild_permissions >= perms
+        if perms and m.guild_permissions >= perms:
+            return True
+        if mod and await self.bot.is_mod(m):
+            return True
         # The following line is for consistency with how perms are handled
-        # in Red, though I'm not sure it makse sense to use here.
-        ret |= await self.bot.is_owner(m)
-        return ret
+        # in Red, though I'm not sure it makes sense to use here.
+        if await self.bot.is_owner(m):
+            return True
 
     async def discover_guild(
         self,