Insure long actions never excessively drain stamina

[kevingranade]

Summary

SUMMARY: None

Purpose of change

This is an alternative to #31921
The underlying problem is that long actions can critically impact stamina, and seem to lead to a death spiral.

Describe the solution

Adjust the trigger for the winded to only occur if current stamina is 20% or less of max stamina.
Add code in player_activity::do_turn() to "pass the turn" if stamina is lower than 33% of max stamina. Stamina is recovered elsewhere in the code.
As a result, stamina-consuming tasks proceed rapidly in bursts if the player is initially in good condition, but longer duration tasks become limited by stamina recovery rate.

[kevingranade]

This pull request has been mentioned on Cataclysm: Dark Days Ahead. There might be relevant details there:

https://discourse.cataclysmdda.org/t/smashing-blindness-9231/20610/2