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 Base Class/Boost/pool/detail/gcd_lcm.hpp

@@ -0,0 +1,58 @@
+// Copyright (C) 2000 Stephen Cleary
+//
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+//
+// See http://www.boost.org for updates, documentation, and revision history.
+
+#ifndef BOOST_POOL_GCD_LCM_HPP
+#define BOOST_POOL_GCD_LCM_HPP
+
+namespace boost {
+
+namespace details {
+namespace pool {
+
+// Greatest common divisor and least common multiple
+
+//
+// gcd is an algorithm that calculates the greatest common divisor of two
+//  integers, using Euclid's algorithm.
+//
+// Pre: A > 0 && B > 0
+// Recommended: A > B
+template <typename Integer>
+Integer gcd(Integer A, Integer B)
+{
+  do
+  {
+    const Integer tmp(B);
+    B = A % B;
+    A = tmp;
+  } while (B != 0);
+
+  return A;
+}
+
+//
+// lcm is an algorithm that calculates the least common multiple of two
+//  integers.
+//
+// Pre: A > 0 && B > 0
+// Recommended: A > B
+template <typename Integer>
+Integer lcm(const Integer & A, const Integer & B)
+{
+  Integer ret = A;
+  ret /= gcd(A, B);
+  ret *= B;
+  return ret;
+}
+
+} // namespace pool
+} // namespace details
+
+} // namespace boost
+
+#endif