add ability to save UDiFF format for cm and fo

[kushal-goenka]

No description provided.

[Craven-Pirate]

when is it going to merge

[kushal-goenka]

I don't maintain this project and it requires approval from the maintainer. You could use the fork in the interim though

[sahilshah6196]

@sevakram Could you have a look? Thanks

[Rahib4]

Thanks @kushal-goenka, I tried your changes and it is working fine.
I was wondering if we can also fetch historical data in the new format.
The old format and new format has lot of differences.. so I was wondering. I am getting errors when I try the old dates lets say any date in 2023/2022.