Built in benchmark test feature for testing and logging performance consistently across a wide variety of scenes

[DibzNr]

With KSP2 performance on the rise, it'd be great to have a benchmarking tool in-game that could allow users to consistently test their performance across a wide variety of game scenes, something akin to GTA V's "Run benchmark tests" option in its settings where the game runs through a series of in-game on rails scripted scenes designed to test the computer's performance,  gradually sloping up in intensity and then outputting the results to a log file, having these scenes be scripted and consistent would allow for highly accurate measurements of system performance to be taken and make it much easier for users to quickly tell if they can run the game, as well as what effects graphics settings will have on the game's performance, it'd also aid a lot with user-polling of performance data across hardware.