Windows support can be added

[akanshSirohi]

Windows libgd binary can be found here, so I think windows support can now be added in this module. Here is one accepted answer to build node-gd for windows: https://stackoverflow.com/questions/21893642/installing-node-gd-on-windows/31125767#31125767

[y-a-v-a]

Hi thanks for letting me know. I'll see if I can find a way to incorporate the retrieval and usage of it in node-gd.