Add Linux compatibility for LoginServer

- Updated main.cpp with platform-specific code for Windows/Linux
- Modified stdafx.h to include Linux headers and definitions
- Updated signal_handler.cpp for cross-platform signal handling
- Added Linux-compatible types and macros
- Created CMakeLists.txt for Linux build system
- Added build.sh script for automated building
- Added loginserver.sh script for server management
- Created comprehensive README_LINUX.md with deployment instructions
- All changes maintain Windows compatibility using preprocessor directives

server/LogInServer/LoginServer.cpp

@@ -20,7 +20,11 @@ bool LoginServer::Startup()
 	printf("Project : %d\n", GetVersion());
 	printf("Edited by Levent\n\n");
 	
+#ifdef _WIN32
 	CreateDirectory("Logs",NULL);
+#else
+	mkdir("Logs", 0755);
+#endif
 
 	m_fpLoginServer = fopen("./Logs/LoginServer.log", "a");
 	if (m_fpLoginServer == nullptr)