patch 9.2.0633: MS-Windows: No support for kitty graphics support in terminal

patch 9.2.0633: MS-Windows: No support for kitty graphics support in terminal

Problem:  MS-Windows: No support for kitty graphics support in terminal
Solution: Add mch_kitty_probe() to os_win32.c, reading the reply from
          the console input handle in VT input mode, with a short grace
          period after the DA1 answer because ConPTY answers DA1 by
          itself. The response parsing is shared with the UNIX probe via
          the new kitty_probe_parse() in kitty.c. (Yasuhiro Matsumoto).

closes: #20497

Signed-off-by: Yasuhiro Matsumoto <mattn.jp@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>