usage: gif2pngs <path>
gif2pngs will write a .png file for every frame of the gif.
The images are stored at the same path as the .gif but with numbers added to
the end of the file names and with .png as the extension.
You need Go installed and can then run:
go get -u github.com/gonutz/gif2pngs
from the command line. The -u option is there to download the latest updates from the github repository.