Placeholders for min/max render/simulation distance

[jippi]

I'm showing the current values in BungeeTabListPlus overlay, and would like to be able to get the configured max and min value without hardcoding it

What I'm doing today is this - and would like to replace 18 and 14 with PAPI placeholders as well

- {text: "&cRender dist: &6${viewer viewdistancetweaks_view_distance} / 18", icon: "colors/green.png", ping: 0}
- {text: "&cSimulation dist: &6${viewer viewdistancetweaks_simulation_distance} / 14", icon: "colors/green.png", ping: 0}