Revise the tty permanent inventory window's in-use mode to be able to
switch back and forth between one full width panel and two side-by-side
half width panels on the fly as needs dictate.
A lot of trial and error involved but I think it has reached a state
where it is reliable, and the smaller number of lines required at
present can probably be viable for actual usage. At the moment it
requires at least 10 extra lines below the standard tty mesg+map+stat
display, 34 lines total for statuslines:2 or 35 for statuslines:3.
The top and bottom of the 10 or more extra lines get drawn as boundary
lines using wall characters, leaving 8 lines for full width or 16 half
lines when 8 isn't enough. If more that 16 items are in use (maybe
lots of lit candles forced into separate inventory slots or a
menagerie on leashes), the excess get skipped. However, it will use
more lines if they are available. Prior to a few days ago it was
requiring 17 extra lines and able to show 15 items as full lines only,
unable to take advantage of more lines when available.
1b1c45d3ce