add ability to save/load IP run for rmc/s/t

[dwhitacre]

Is your feature request related to a problem? Please describe. The plugin ends up in a bad state that prevents switching map. The tmx api goes down. The game crashes. etc

Describe the solution you'd like It would be nice if unexpected issues are happening, I could save the IP run and then come back to it later. This doesnt necessarily need to be a manual save either, it could just be an autosave when I finish a map of my current state. Then the UI could allow to load a previous run and continue it as if the problem never happened.

Describe alternatives you've considered Manual vs Autosaving - what are the pros and cons of each? Id prefer a rolling backup that autosaved for unexpected issues to be the most reliable... but you could get by with a manual save in most scenarios.

Concerns around manipulation - sure, but i think ultimately video proof is required atm, so anybody faking times or medal counts would be verifiable. i think ultimately, any tracking of that data should ultimately be done server side for leaderboard automation.

Additional context Just another alternative really when trackmania is being bad. I'd be willing to work on this, maybe later this week.

[EdVraz]

I'm gonna give this a try

[dwhitacre]

@EdVraz nice work on this 🥳