uCON64 Code (SVN)

- Fixed configure.in by using host and host_cpu instead of target and
target_cpu.
- Generated configure with Autoconf 2.71.
- Updated config.guess and config.sub with the ones that come with Autoconf
2.71.

- Updated the year.
- Added support for Visual Studio 2022. The functions inp{w}() en outp{w}() are
treated as (undocumented) intrinsics and appear to work, but Visual Studio 2022
does not provide a header with declarations. So, calls to them result in
compiler warnings about intrinsics without declarations. Instead of suppressing
those warnings I chose to start using the actually documented intrinsics
__inbyte(), __inword(), __outbyte() and __outword() from Visual Studio 2022
onward.

- Third time's a charm ;-)

- Make latest version of the FAQ available on the homepage.

- Fixed resource leak introduced with previous change.
- Corrected explanation.

- Found the official homepage of MinGW by chance. Updated the link in the FAQ
and fixed the warnings produced by the current version of MinGW (ftime() and
struct timeb are removed from the latest POSIX standard (POSIX.1-20017) --
switched to the Windows-specific _ftime() and struct _timeb).
- Re-added the work-around for linking libcd64 on Windows with the 64-bit
versions of GCC and now also Clang.
- Added extra error check to Windows implementation of truncate().
- Fixed a bug in unregister_func() when passing NULL as argument.
- Enabled calls to drop_privileges_temp(), drop_privileges() and
regain_privileges() on macOS, just to do the same as on the other UNIX OSes.
- Fixed warning on UNIX OSes other than GNU/Linux about unused exec() in f2a.c.

- Fixed previous fix (files 0 bytes in size caused trouble, for example for
--padn).
- Made displaying bits of a byte slightly more elegant.

- Fixed -j which I broke horribly in 2.2.2. Painful, but this is what can
happen if functionality is not tested nor used.

- The header of libusb-0.1 that comes with Cygwin 32-bit is usb.h.

- Increased the version to 2.2.3 (WIP).