FoV coefficient/based yaw value support

[animafps]

Is your feature request related to a problem? Please describe.
For a lot of games, there is a feature where the fov changes the sensitivity as a way to rudimentarily have focal length scaling. example: Paladins and Rust. and there should be a way to convert sensitivity from these games reliably.

Describe the solution you'd like
Implement a way to support the games with it as well as the various different ways the games scale it
should be able to be implemented to the current command set without too much or any breaking changes to the current way to run the commands

Describe alternatives you've considered
Nothing but if it was based on the default there may be issues with non-standard aspect ratios changing the fov and the games that have variable fov values won't be supported still.