bugfix: text color in windows consoles (otland#4044)

otland#3940 introduced a colored message
colored messages sometimes fail to process in command prompt/powershell
this code fixes that issue

(cherry picked from commit 73bdc12)

src/otserv.cpp

@@ -136,6 +136,13 @@ void mainLoader(int, char*[], ServiceManager* services)
 	srand(static_cast<unsigned int>(OTSYS_TIME()));
 #ifdef _WIN32
 	SetConsoleTitle(STATUS_SERVER_NAME);
+
+	// fixes a problem with escape characters not being processed in Windows consoles
+	HANDLE hOut = GetStdHandle(STD_OUTPUT_HANDLE);
+	DWORD dwMode = 0;
+	GetConsoleMode(hOut, &dwMode);
+	dwMode |= ENABLE_VIRTUAL_TERMINAL_PROCESSING;
+	SetConsoleMode(hOut, dwMode);
 #endif
 
 	printServerVersion();