Add vim info

src/base/dbl_list/dbl_list.c

@@ -1,3 +1,5 @@
+// vim:fileencoding=utf-8:foldmethod=marker
+
 #include "./dbl_list.h"
 #include "../mem/allocator/mem_allocator.h"
 #include "../../common/assert/assert.h"

src/base/dbl_list/dbl_list.h

@@ -1,3 +1,5 @@
+// vim:fileencoding=utf-8:foldmethod=marker
+
 #ifndef DBL_LIST_H
 #define DBL_LIST_H