tty prompting fix and DUMPLOG of prompts+answers

Update DUMPLOG's message history to include player responses to
most queries.  For tty, both getlin() and yn_function().  For other
interfaces, only yn_function() is covered.  (It's intercepted by a
core routine that can take care of the logging; getlin() isn't.)
Also includes saved messages from previous session(s), for the
interfaces which support that (tty), to fill out the logging when
a game ends shortly after a save/restore cycle.

The tty interface was using pline() to display prompt strings.
Having 'MSGTYPE=hide "#"' or 'MSGTYPE=hide "yn"' in .nethackrc
would suppress many prompt strings (in the two examples mentioned,
entering extended commands or the vast majority of yes/no questions,
respectively) and generally lead to substantial confusion even if
done intentionally, so switch to putstr(WIN_MESSAGE) instead.

doc/fixes36.1

@@ -426,6 +426,7 @@ tty: if "--More--" was written to leftmost column (beginning of second line)
 	of status line instead back on map) after message line was cleared
 tty: long message lines which wrap when shown on the top line might be
 	re-displayed incorrectly by ^P for msg_window={full,combo,reverse}
+tty: MSGTYPE=hide could interfere with display of prompts
 unix/X11: in top level Makefile, some commented out definitions of VARDATND
 	misspelled pilemark.xbm (as pilemark.xpm)
 unix: options file with CR+LF line ends and an invalid option line resulted in
@@ -570,7 +571,8 @@ Ray Chason's MS-DOS port restored to functionality with credit to Reddit user
 Ray Chason's MSDOS port support for some VESA modes
 Darshan Shaligram's pet ranged attack
 Jason Dorje Short's key rebinding
-Maxime Bacoux's new dumplog
+Maxime Bacoux's new DUMPLOG: compile-time option to enable logging of
+	 end-of-game information into a text file
 
 
 Code Cleanup and Reorganization