Directory Structure [step 1]: moving files

working on #672

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deps/g3dlite/include/G3D/format.h

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+/**
+ @file format.h
+ 
+ @maintainer Morgan McGuire, http://graphics.cs.williams.edu
+ 
+ @author  2000-09-09
+ @edited  2005-11-03
+
+ Copyright 2000-2005, Morgan McGuire.
+ All rights reserved.
+ */
+
+#ifndef G3D_FORMAT_H
+#define G3D_FORMAT_H
+
+#include "G3D/platform.h"
+#include <string>
+#include <stdio.h>
+#include <cstdarg>
+
+namespace G3D {
+
+/**
+  Produces a string from arguments of the style of printf.  This avoids
+  problems with buffer overflows when using sprintf and makes it easy
+  to use the result functionally.  This function is fast when the resulting
+  string is under 160 characters (not including terminator) and slower
+  when the string is longer.
+ */
+std::string   __cdecl format(
+    const char*                 fmt
+    ...) G3D_CHECK_PRINTF_ARGS;
+
+/**
+  Like format, but can be called with the argument list from a ... function.
+ */
+std::string vformat(
+    const char*                 fmt,
+    va_list                     argPtr) G3D_CHECK_VPRINTF_ARGS;
+
+
+} // namespace
+
+#endif