Support the creation of shortcuts that can use Unicode versions of
their name (description), relative path, working directory, command-
line arguments, and icon location.
This option can be selected at runtime with a switch.
Additionally:
- Ensure that `wchar_t` is 16-bit wide.
- Introduce and use a "poor-man" ANSI-to-UTF16LE `my_mbstowcs()` routine
to convert the ANSI strings, for the Unicode scenario mentioned above.
We cannot use the host mbstowcs() routine, since on *nix systems the
iconv library being used may have been compiled with a 32-bit `wchar_t`
(even if the tool is compiled with: `-fshort-wchar -fwide-exec-charset=UTF-16LE`),
as this is the case with the GitHub actions build bots.
Hermès Bélusca-Maïto
e505a8dbaa