#3012 [interface] An auto-search command

[Stefan O'Rear]

This is a sister FR to 2891094. It solves the same problem, but in a different way.

There are certain situations where a door needs to be found and efficiency is no object. When a level needs to be explored and food is plentiful, we have auto-explore; searching one area can be done with long rest; but there is nothing currently available for searching an entire region of the dungeon. Therefore, I propose an auto search command, control-E. When used, this command accepts the amount of searching to perform and (by some undecided interface) the region to be searched; it then carries out the search in a fashion with about the same intelligence as auto-explore.