[Request] Document "control" feature

[Kenajcrap]

Hi,
While searching for alternative ways to begin and end logging, I stumbled upon the mangohudctl build parameter.
However I cannot get it to work completely as /usr/bin/mangohudctl doesn't do anything to the mangohud overlay
By putting control=[socket path] in MangoHud.conf I can get the socket created, but it seems like the related param is then set to -1 here before process_control_socket() can be called? I'm not sure since I'm not familiar with cpp at all...
Is this feature finished? If so, how can I get it working? It would be really helpful to my little project!

I have also noticed a control python module in the source files, having that work will be specially useful, since the project I'm working on is written in python.

Thank you for this amazing tool.

Edit: I've gotten the feature to work by installing the python package located in MangoHud/control through pip and using the ~/.local/bin/mangohud-control entrypoint that gets created. However, only for vulkan applications, unfortunately.