Implement full Warden anti-cheat crypto system (WoW 3.3.5a)

Add complete RC4 encryption/decryption for Warden packets with proper
module initialization, seed extraction, and encrypted check responses.

New components:
- WardenCrypto class: Handles RC4 cipher state for incoming/outgoing packets
- Module initialization: Extracts 16-byte seed from first SMSG_WARDEN_DATA
- Separate input/output RC4 ciphers with proper key derivation
- Enhanced module ACK: Sends encrypted acknowledgment with checksum

Updated GameHandler:
- First packet: Initialize crypto and send encrypted module ACK
- Subsequent packets: Decrypt checks, generate responses, encrypt replies
- Support for module info, hash checks, Lua checks, and memory scans
- Detailed logging of plaintext and encrypted data for debugging

Works with servers that:
- Use standard WoW 3.3.5a Warden protocol
- Accept crypto-based responses without module execution
- Have permissive or disabled Warden settings

Tested against Warmane (strict enforcement) and ready for less restrictive servers.

CMakeLists.txt

@@ -89,6 +89,7 @@ set(WOWEE_SOURCES
 
     # Game
     src/game/game_handler.cpp
+    src/game/warden_crypto.cpp
     src/game/transport_manager.cpp
     src/game/world.cpp
     src/game/player.cpp