fix #K125 - autounlock vs touching artifacts

Apply makes a touch_artifact check on the tool being applied, but
autounlock would pick an unlocking tool to use without doing that.
Noticed while fixing that:  autounlock took no time.

Since picking an artifact unlocking tool might now blast the hero,
change the tool selection.  First choice: any key except another
role's quest artifact; second: any lock-pick except another role's
quest artifact; third: any credit card except another role's quest
artifact; fourth, fifth, sixth: other roles' quest artifact key,
lock-pick, or credit card.  The fifth category (artifact lock-picks)
is empty.  Rogues will pick non-cursed Master Key over any other
key (special case for first choice).  Tourists will pick a key or
a lock-pick over their PYEC (first and second choices over third).

doc/fixes37.0

@@ -1,4 +1,4 @@
-$NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.52 $ $NHDT-Date: 1578258722 2020/01/05 21:12:02 $
+$NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.54 $ $NHDT-Date: 1578297243 2020/01/06 07:54:03 $
 
 General Fixes and Modified Features
 -----------------------------------
@@ -44,6 +44,12 @@ after 'w' on split stack patch, wielding '-' would cause an object_lost panic
 same patch allowed partial stack from getobj to replace cursed wielded weapon
 if the orc-town version of mine town has been loaded, creation of orc zombies
 	or orc mummies would name them as part of the town raiding orc clan
+autounlock of door or chest took no time; chest case depended on whether
+	anything got looted along with the unlocking
+autounlock with artifact unlocking tool didn't do touch check on that tool
+autounlock picked Rogue's artifact key over lock-pick or credit card (or
+	ordinary key depending upon invent order) even for non-rogues who
+	would be blasted when touching it
 
 
 Platform- and/or Interface-Specific Fixes