win,errors: remap ERROR_ACCESS_DENIED to UV_EACCES

If we try to use uv_fs_rmdir on a read-only directory on Windows, it
internally calls _wrmdir, which sets _doserrno to ERROR_ACCESS_DENIED
and errno to EACCES. However, ERROR_ACCESS_DENIED is mapped to UV_EPERM,
so I believe it should be remapped to UV_EACCES.

Signed-off-by: Darshan Sen <raisinten@gmail.com>

src/win/error.c

@@ -73,6 +73,7 @@ int uv_translate_sys_error(int sys_errno) {
  case WSAEACCES: return UV_EACCES;
  case ERROR_ELEVATION_REQUIRED: return UV_EACCES;
  case ERROR_CANT_ACCESS_FILE: return UV_EACCES;
+ case ERROR_ACCESS_DENIED: return UV_EACCES;
  case ERROR_ADDRESS_ALREADY_ASSOCIATED: return UV_EADDRINUSE;
  case WSAEADDRINUSE: return UV_EADDRINUSE;
  case WSAEADDRNOTAVAIL: return UV_EADDRNOTAVAIL;
@@ -154,7 +155,6 @@ int uv_translate_sys_error(int sys_errno) {
  case WSAENOTSOCK: return UV_ENOTSOCK;
  case ERROR_NOT_SUPPORTED: return UV_ENOTSUP;
  case ERROR_BROKEN_PIPE: return UV_EOF;
- case ERROR_ACCESS_DENIED: return UV_EPERM;
  case ERROR_PRIVILEGE_NOT_HELD: return UV_EPERM;
  case ERROR_BAD_PIPE: return UV_EPIPE;
  case ERROR_NO_DATA: return UV_EPIPE;