Converted tooling to C.

tools/utils/file.h

@@ -8,8 +8,14 @@
 #pragma once
 #include "common.h"
 
+#define FILE_CHILD_TYPE_DIR 0x00
+#define FILE_CHILD_TYPE_FILE 0x01
+#define FILE_CHILD_NAME_MAX 512
+#define FILE_CHILD_COUNT_MAX 64
+
 #if defined(_MSC_VER)
   #include <direct.h>
+  #include <windows.h>
   #define getcwd _getcwd
   #define FILE_PATH_SEP '\\'
 #elif defined(__GNUC__)
@@ -21,4 +27,14 @@ void fileNormalizeSlashes(char *string);
 
 void fileMkdirp(char *path);
 
-void assetReadString(FILE *file, char *buffer);
+void assetReadString(FILE *file, char *buffer);
+
+void fileGetDirectory(char *file, char* buffer);
+
+bool fileListChildren(
+  char *directory,
+  char *buffer,
+  int32_t *count,
+  uint8_t *types,
+  char **children
+);