update .gitignore

Ignore the new timestamp files src/moc.qt5 and src/moc.qt6.  They
probably ought to be renamed Qt*.moc-t but I haven't done that.

Also put back vis_tab.* in case someone checks out 3.6 and builds
that, then checks out 3.7 without doing 'make spotless' first.

include/.gitignore

@@ -4,6 +4,7 @@ onames.h
 pm.h
 dgn_comp.h
 lev_comp.h
+vis_tab.h
 tile.h
 win32api.h
 nhlua.h

src/.gitignore

@@ -1,12 +1,14 @@
 config.h-t
-monstr.c
 hack.h-t
+monstr.c
+vis_tab.c
 tile.c
 Sysunix
 nethack
 *.o
 tiles.bmp
 *.moc
+moc.qt*
 *.lnk
 graphicschk
 nhdat