fix github issue #1257 - nymph theft while blind

Issue reported by Meklon2007:  some theft feedback during nymph
attacks refers to the attacker as "she" and others as "it" if hero
is blind.

The "she" references are intentional.  However, mixing them with
"it" references when a series of messages occurs is jarring.  This
changes "it" to "someone", which is still different from "she" but
hopefully enough less so to be tolerable.

That resulted in monkeys also being referred to as "someone" because
they're classified as humanoid.  Change x_monnam()'s AUGMENT_IT
handling, which chooses between "someone" and "something" when the
monster is not seen, to override humanoid for animals (affects 'Y'
class) and for mindless (affects zombies, mummies, and golems).
So an unseen monkey will be "it" again.

The final message for current item was relying on a cached monster
name value.  If an unseen nymph or monkey stole a worn blindfold
so that hero's vision was restored:  "It <stole> item" before the
changes and "Someone|Something <stole> item" after.  So update the
cached name if sight gets regained, to give "<Mon> stole <item>."
(If the item is worn armor and the thief is a nymph, it was and
still is "She stole <item>".)

The message for having any worn item be stolen, which got split
into two parts within the past year, was giving "<Mon> takes off
<alt weapon>".  When not dual-wielded, the alternate weapon isn't
really worn.  Rather than suppress it outright, change the message
for uwep/uswapwep/uquiver to say "disarms" instead of "takes off".
For accessories, change "takes off" to "removes".  Those are more
or less interchangeable these days but "removes" matches R instead
of T.

While testing, my pet evidently killed a nymph (I was blinded and
couldn't see it happen) while she stole my gloves and the next
message I got was "You finish taking off your suit."  The gloves
weren't worn anymore so equipname() defaulted to suit.  Get rid of
equipname() altogether and switch to armor_simple_name() which
doesn't rely on the worn-armor pointers.

Fixes #1257

doc/fixes3-7-0.txt

@@ -1,4 +1,4 @@
-NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.1450 $ $NHDT-Date: 1720074479 2024/07/04 06:27:59 $
+NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.1455 $ $NHDT-Date: 1720895738 2024/07/13 18:35:38 $
 
 General Fixes and Modified Features
 -----------------------------------
@@ -1439,6 +1439,12 @@ using #loot -> 'i'n to put multiple items into a shop-owned container would
 	don't-sell state was being reset for each item so 'a' and 'q' didn't
 	stick beyond the current one
 join wall "spines" with walls of water and lava
+some theft messages by nymphs force "she", others use default monster naming
+	which yields "it" when unseen; change the latter to "someone" which
+	still differs from "she" in a series of messages but isn't as jarring
+if a nymph stole worn armor and got killed (perhaps by pet) before hero's next
+	turn, feedback would be "You finish taking off your suit." regardless
+	of the type of armor being taken off
 
 
 Fixes to 3.7.0-x General Problems Exposed Via git Repository