removed dependency on os_ext

src/linker/lnk_io.h

@@ -1,5 +1,7 @@
 #pragma once
 
+////////////////////////////////
+
 typedef struct
 {
   String8Array path_arr;
@@ -10,10 +12,13 @@ typedef struct
   U8          *buffer;
 } LNK_DiskReader;
 
+////////////////////////////////
+
 internal String8      lnk_read_data_from_file_path(Arena *arena, String8 path);
 internal String8Array lnk_read_data_from_file_path_parallel(TP_Context *tp, Arena *arena, String8Array path_arr);
 
 internal void lnk_write_data_list_to_file_path(String8 path, String8List list);
 internal void lnk_write_data_to_file_path(String8 path, String8 data);
 
+internal String8List lnk_file_search(Arena *arena, String8List dir_list, String8 file_path);