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>

Tools/PatchMaker/ChecksumPage.h

@@ -0,0 +1,21 @@
+#pragma once
+
+
+// CChecksumPage <20><>ȭ <20><><EFBFBD><EFBFBD><EFBFBD>Դϴ<D4B4>.
+
+class CChecksumPage : public CPropertyPage
+{
+    DECLARE_DYNAMIC(CChecksumPage)
+
+public:
+    CChecksumPage();
+    virtual ~CChecksumPage();
+
+// <20><>ȭ <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Դϴ<D4B4>.
+    enum { IDD = IDD_CHECKSUM };
+
+protected:
+    virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV <20><><EFBFBD><EFBFBD><EFBFBD>Դϴ<D4B4>.
+
+    DECLARE_MESSAGE_MAP()
+};