Feature request: Demo to MP4 converter

[VeH-c]

I feature that would allow you to directly convert .demo's to a video for format for easier sharing, has already been implemented in the now dead N-client & HMH tried to implement it in the DDnet client but it never happened, should not be to hard for you guys as it's all open-Source & mostly needs porting to a DDnet style client demo system.

Here is the relevant repositories https://github.com/MAP94/teeworlds/ https://github.com/andi103/N-Client

some maybe not so relevant information https://hclient.wordpress.com/ https://www.teeworlds.com/forum/viewtopic.php?id=8025 https://forum.ddnet.tw/viewtopic.php?p=45531#p45531