automatic quicksave based on elapsed real time

[ab9rf]

an option to configure automatic quicksaves every n minutes of elapsed real time

suggestion raised by a discord discussion

[realSquidCoder]

this is now possible with any script using the getUnsavedSeconds API

[myk002]

This probably deserves to be its own top-level tool, despite its simplicity. named autosave, probably, with global configuration for how often to save and local configuration for whether it is enabled. Integration with control-panel as an automation tool, I think.