feat: add password protection cog for channels

Adds new Discord bot cog enabling password-protected channels.
Includes verification, channel management, whitelist/blacklist,
and admin password recovery features.

pp/info.json

@@ -0,0 +1,10 @@
+{
+    "author": ["kitsunic"],
+    "description": "A cog for password protected channels",
+    "end_user_data_statement": "This cog stores user, avatar, and guild data. A simple delete request to bot to remove your data or guild data",
+    "install_msg": "Thanks for installing & testing.",
+    "min_bot_version": "3.5.0",
+    "short": "A pwd channel protection cog",
+    "tags": ["embed"],
+    "type": "COG"
+}