CLI tool for encoding PGV video files
Takes as input a folder containing named PNG files (as 001.png, 002.png, etc) and an optional WAV audio track, and produces an encoded PGV video file
``` Usage: pgv-cli.exe [OPTIONS] -i -n -f -o
Options: -i -n -f -a -o -h, --help Print help -V, --version Print version ```