Add guards around std library headers (#3013)

* Last fix for standard compiler error

* adding define guards around headers

* rename cmath.h and climits.h to cmath and climits respectively

* renaming cstdarg.h to cstdarg

* renaming cstdlib.h to cstdlib

* renaming cstring.h to cstring

* renaming cstdio.h to cstdio

* renaming cmath locale ctype

* renaming stdarg string and va_list

* renaming cstddef

* renaming stdio stddef stdlib

* renaming algorithm, functional, iterator, memory, and utility

* renaming bitset, cstdint, limits, and stdint

* renaming new and type_traits

* update quote includes for standard library headers to angle bracket includes

include/JSystem/JGeometry.h

@@ -2,9 +2,14 @@
 #define JGEOMETRY_H
 
 #include "dolphin/mtx.h"
-#include <math.h>
+#include <cmath>
 #include "JSystem/JMath/JMath.h"
 
+#ifndef __MWERKS__
+#include <limits>
+#define FLT_EPSILON std::numeric_limits<float>::epsilon()
+#endif
+
 namespace JGeometry {
 
 template<typename T>