add Van: A functional-programming and object-oriented-programming script language

[liufeigit]

add Van: A functional-programming and object-oriented-programming script languag

[mwasplund]

@liufeigit, thanks for the submission. Based on the readme it looks like this project is still in active development. This list is currently limited to mature projects that are ready for usage in production applications. Feel free to leave this PR open, but I think we should hold off reviewing your language until you feel it is ready for production usage.

Thanks, -Matt

[liufeigit]

Ok, thank you for reminding 👌