added vsprintf.h

inc/hgl/platform/os/CharType.h

@@ -16,5 +16,4 @@ using os_char           =char;
 #define os_in           std::cin
 #define os_err          std::cerr
 #define os_log          std::clog
-
 #endif//HGL_CHAR_TYPE_INCLUDE

inc/hgl/platform/os/vsprintf.h

@@ -0,0 +1,9 @@
+#ifndef HGL_VSPRINTF_INCLUDE
+#define HGL_VSPRINTF_INCLUDE
+
+#include<stdarg.h>
+namespace hgl
+{
+    template<typename T> int vsprintf(T *,const size_t,const T *,va_list va);
+}//namespace hgl
+#endif//HGL_VSPRINTF_INCLUDE