[FR] Switch between thermistor temp tables "on-the-fly"

[classicrocker883]

Is your feature request related to a problem? Please describe.

No response

Are you looking for hardware support?

No response

Describe the feature you want

Basically a Gcode command and/or display menu option that can swap the extruder's thermistor.
Lets focus on 1 single extruder.
Load say 2 or more temptable_*s and swap them in heater_ttbl_map/heater_ttbllen_map
This may have to involve some tricks, like pretend there's 2 extruders.

Additional context

the benefit is if you change a hotend and dont wish to recompile. that you have it already stored in memory.
only feasible if temp tables don't actually take up much room. can load 1 or 2 or more additional thermistors.