A thin wrapper around ExifTool

This uses the excellent ExifTool by Phil Harvey:

• https://exiftool.org/
• https://github.com/exiftool/exiftool

dist_unix.sh and dist_windows.sh build minimal, self-contained distros of ExifTool for both Unix (Linux/macOS/etc) and Windows. Use Git BASH to run the Windows script.

The Windows version uses Strawberry Perl:

• https://strawberryperl.com/
• https://github.com/StrawberryPerl