Add support for timeouts to Mutes cog (#5604)

Co-authored-by: Michael Oliveira <34169552+Flame442@users.noreply.github.com>

redbot/cogs/mutes/models.py

@@ -0,0 +1,19 @@
+from typing import Optional, Dict
+
+import discord
+
+from dataclasses import dataclass
+
+
+@dataclass
+class MuteResponse:
+    success: bool
+    reason: Optional[str]
+    user: discord.Member
+
+
+@dataclass
+class ChannelMuteResponse(MuteResponse):
+    channel: discord.abc.GuildChannel
+    old_overs: Optional[Dict[str, bool]]
+    voice_mute: bool