revamped curses status display

revamped curses status display

I've overhauled the status display for curses.  Horizontal layout
supports both 2 lines and 3 lines which can be changed dynamically
via using 'O' to set 'statuslines'.  Fields are spread out a little
more than they used to be, making it more readable--at least to me--
but the extra spaces get squeezed out when lines become too long.
If 'showexp' is on and either conditions or hunger+encumbrance go
off the right edge, experience points are suppressed (but the option
is left on, so they'll come back once there is room).

For traditional 2-line hozizontal status, if hunger+encumbrance+
conditions go off the right edge even after experience points are
knocked out, there will be a '+' in the rightmost column if there
are any conditions that are all the way off.  At present it doesn't
use the tty method of switching to abbreviated condition names to
reduce their legnth.  I'll probably tackle that eventually if no one
beats me to it.

For 3-line horizonal status, there was an older implementation (but
disabled via #if 0) with gold and score moving to the third line.
(I'm not sure how status conditions were handled.)  This one ignored
that and modified 2-line from scratch, moving alignment from line one
to line 2 and level description, time, and conditions from line 2 to
line 3.  It looks like this (view with a fixed-width font...).

Wizard the Hatamoto            St:16 Dx:15 Co:18 In:8 Wi:11 Ch:7    S:25
Lawful  $:21  HP:25(25)  Pw:6(6)  AC:4  Xp:2/21  Hungry Burdened
Dlvl:1  T:36                                     Blind Lev

Score is actually right aligned with the edge but I've deleted several
spaces to keep the line shorter here.  The status conditions line up
with the hunger slot as that shifts due to changes in gold/HP/power/AC/
experience, and conditions prefer that column even when hunger and/or
encumbrance are blank.  Howver, if the number of conditions increase to
the point where they would go off the edge, the whole list shifts left
instead of trying to stay lined up with hunger.  (It's just coincidence
that the lefthand parts of lines 2 and 3 seem to line up in this sample.
In general, they don't.)

The vertical layout has reordered most of the fields and now has a few
blank lines to separate those fields into some groups for readability.
Lines have the form of
Field-name  : Value
and when highlights apply, now they only affect the value portion.
Single digit characteristics are padded with a leading space so that
all six of them line up (for "18/xx", "/xx" protrudes to the right).
HP and Pw are aligned with each other.  Hunger and encumbrance share a
line.  When there are more than three conditions, they're shown three
per line instead of wrapping across lines.  And if too many lines are
present, it will squeeze out enough blank ones to fit.

To see the vertical status, you need a display size of at least 106
columns with 'windowborders' explicitly off, or 110 with them on; also
set option 'align_status' to 'right' or 'left'.  (With borders on,
including the default 'auto' setting, the vertical status appears at
width of 108 columns, but does so by hiding 2 columns of the map; using
110 columns avoids that.)  Resizing from outside the game or changing
align_status via 'O' both cause dynamic reconfiguration of the layout;
there's no need to save, make config changes, then restore.