Add comprehensive combat sound manager with weapon swings and impacts

Implemented complete combat audio system with 40+ combat sounds:

Weapon swing sounds (whooshes):
- Small weapons (1H): 3 variations + crit
- Medium weapons (2H): 3 variations + crit
- Large weapons (heavy 2H): 3 variations + crit
- Miss whooshes: separate 1H/2H sounds

Impact sounds by armor type:
- Flesh (unarmored/cloth): 3 variations + crit
- Chain armor: 3 variations + crit
- Plate armor: 3 variations + crit
- Shield blocks: 3 variations + crit
- Metal weapon parries: 1 sound
- Wood impacts: 3 variations
- Stone impacts: 3 variations

Emote sounds:
- Clap: 7 variations

Technical details:
- Loads 40+ sound files from Sound\Item\Weapons and Sound\Character
- Simple API: playWeaponSwing(size, isCrit), playImpact(size, type, isCrit)
- Random variation selection for non-crit sounds
- Volume at 0.8 with global scale control
- Crit sounds play 1.2x louder for emphasis
- Uses 1H axe impact sounds as base (similar across weapon types)
- Ready for integration with combat system

Usage examples:
```cpp
combatSoundManager->playWeaponSwing(WeaponSize::SMALL, false);
combatSoundManager->playImpact(WeaponSize::MEDIUM, ImpactType::PLATE, true);
combatSoundManager->playWeaponMiss(true);  // 2H miss
combatSoundManager->playClap();
```

This adds essential combat audio feedback for melee combat!

CMakeLists.txt

@@ -107,6 +107,7 @@ set(WOWEE_SOURCES
     src/audio/npc_voice_manager.cpp
     src/audio/ambient_sound_manager.cpp
     src/audio/ui_sound_manager.cpp
+    src/audio/combat_sound_manager.cpp
 
     # Pipeline (asset loaders)
     src/pipeline/mpq_manager.cpp