Added math.h, stdlib.h, float.h, and stbool.h to std folder (and all their implementations). Opted to NOT implement malloc/free/etc. in favor of having our own functions init_mem, grow_mem, and get_mem.

cwasm.h

@@ -31,6 +31,9 @@ Description:
 #error This standard library implementation assumes little-endian byte order
 #endif
 
+// +--------------------------------------------------------------+
+// |                            Macros                            |
+// +--------------------------------------------------------------+
 #ifdef __cplusplus
 #define LANGUAGE_IS_C   0
 #define LANGUAGE_IS_CPP 1
@@ -66,8 +69,17 @@ Description:
 // |                      Standard Includes                       |
 // +--------------------------------------------------------------+
 // NOTE: These headers are all contained in CWasm's "std" folder, they are not "real" C standard library headers
+#include <limits.h>
 #include <stdint.h>
+#include <uchar.h>
+#include <float.h>
+#include <stdbool.h>
 #include <string.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stddef.h>
+#include <assert.h>
+#include <math.h>
 
 // +--------------------------------------------------------------+
 // |                       Basic Type Names                       |