github issue #1275: curses init vs pauper

Reported by ars3niy, the curses interface could behave strangely on
the first turn if the 'pauper' option/conduct was specified.

There isn't any definitive flag indicating whether or not the game
has started.  Since 'moves' has traditionally been initialized to 1
rather than to 0, there were several instances of
|  if (moves <= 1 && invent != NULL)
being used to determine the starting state on the assumption that
once hero has inventory, the game has begun.  Introduction of the
'pauper' option made the test for non-Null invent become unreliable.
For paupers, the program would behave as if the game hadn't started
yet until the player finally made a time-consuming move.

This changes compile-time initialization of 'moves' from 1 to 0,
then sets it to 1 when initial inventory would be bestowed (even
when 'pauper' inhibits that).  That's probably not the best place
for it, but testing for 'moves==0' now should produce an identical
effect as 'moves<=1 && invent!=NULL' used to accomplish.

It would have been much simpler just to give paupers 1 gold piece,
or perhaps one rock, in place of usual starting gear so that their
initial inventory wouldn't be empty, but the moves+invent way of
checking for start-of-play has always bothered me.

Should 'pauper' be preventing 'nethack -X' from giving its starting
wand of wishing?  Conducts and explore mode don't really overlap so
maybe it doesn't matter.

Fixes #1275

win/curses/cursdial.c

@@ -227,7 +227,7 @@ curses_character_input_dialog(
        re-activate them now that input is being requested */
     curses_got_input();
 
-    if (gi.invent || (svm.moves > 1)) {
+    if (svm.moves > 0) {
         curses_get_window_size(MAP_WIN, &map_height, &map_width);
     } else {
         map_height = term_rows;
@@ -789,7 +789,7 @@ curses_display_nhmenu(
     menu_determine_pages(current_menu);
 
     /* Display pre and post-game menus centered */
-    if ((svm.moves <= 1 && !gi.invent) || program_state.gameover) {
+    if (svm.moves == 0 || program_state.gameover) {
         win = curses_create_window(wid, current_menu->width,
                                    current_menu->height, CENTER);
     } else { /* Display during-game menus on the right out of the way */