Initial commit: ROW Client source code

Game client codebase including:
- CharacterActionControl: Character and creature management
- GlobalScript: Network, items, skills, quests, utilities
- RYLClient: Main client application with GUI and event handlers
- Engine: 3D rendering engine (RYLGL)
- MemoryManager: Custom memory allocation
- Library: Third-party dependencies (DirectX, boost, etc.)
- Tools: Development utilities

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

Engine/Zalla3D Scene Class/BillboardParticle.cpp

@@ -0,0 +1,25 @@
+// BillboardParticle.cpp: implementation of the CBillboardParticle class.
+//
+//////////////////////////////////////////////////////////////////////
+
+#include "BillboardParticle.h"
+#include "GMMemory.h"
+
+//////////////////////////////////////////////////////////////////////
+// Construction/Destruction
+//////////////////////////////////////////////////////////////////////
+
+CBillboardParticle::CBillboardParticle()
+{
+
+}
+
+CBillboardParticle::~CBillboardParticle()
+{
+
+}
+
+void CBillboardParticle::Create(vector3 vecPos)
+{
+	
+}