Options to create the character blind or nudist

For those pro players who really want to try their hand
at that zen samurai, without needing to reroll thousands
of times to start with blindfold.  Nudist starts without
any armor, and keeps tabs whether you wore any during
the game, for even more bragging rights.

Also makes the Book of the Dead readable even while
blind, for obvious reasons.

include/patchlevel.h

@@ -14,7 +14,7 @@
  * Incrementing EDITLEVEL can be used to force invalidation of old bones
  * and save files.
  */
-#define EDITLEVEL	59
+#define EDITLEVEL	60
 
 #define COPYRIGHT_BANNER_A \
 "NetHack, Copyright 1985-2015"

include/you.h

@@ -92,6 +92,11 @@ struct u_conduct {		/* number of times... */
 				/* genocides already listed at end of game */
 };
 
+struct u_roleplay {
+    boolean  blind;   /* permanently blind */
+    boolean  nudist;  /* has not worn any armor, ever */
+};
+
 /*** Unified structure containing role information ***/
 struct Role {
 	/*** Strings that name various things ***/
@@ -330,6 +335,7 @@ struct you {
 	struct u_event	uevent;		/* certain events have happened */
 	struct u_have	uhave;		/* you're carrying special objects */
 	struct u_conduct uconduct;	/* KMH, conduct */
+	struct u_roleplay uroleplay;
 	struct attribs	acurr,		/* your current attributes (eg. str)*/
 			aexe,		/* for gain/loss via "exercise" */
 			abon,		/* your bonus attributes (eg. str) */

include/youprop.h

@@ -91,7 +91,7 @@
 #define Blinded			u.uprops[BLINDED].intrinsic
 #define Blindfolded		(ublindf && ublindf->otyp != LENSES)
 		/* ...means blind because of a cover */
-#define Blind	((Blinded || Blindfolded || !haseyes(youmonst.data)) && \
+#define Blind	((u.uroleplay.blind || Blinded || Blindfolded || !haseyes(youmonst.data)) && \
 		 !(ublindf && ublindf->oartifact == ART_EYES_OF_THE_OVERWORLD))
 		/* ...the Eyes operate even when you really are blind
 		    or don't have any eyes */