Add curses support to ttyplay

[NHTangles]

for improved rendering of ttyrecs of NetHack games using the
curses interface.

[mjording]

Curses has a much larger footprint then termios, so at least I appreciate the request as a feature flag. I'd be interested to see a bit of benchmarking. Have you had a chance to exercise the branch in the wild?

[mjording]

Curses has a much larger footprint then termios, so at least I appreciate the request as a feature flag. I'd be interested to see a bit of benchmarking. Have you had a chance to exercise the branch in the wild?

[NHTangles]

Thanks for the review! No I have not done any benchmmarking, but as a bit of background, this is something that is needed to accurately replay ttyrecs of games which use curses for rendering such as this https://nethackwiki.com/wiki/Curses_interface, that are recoreded via dgamelaunch (https://github.com/altorg/dgamelaunch). Some examples (try playing them with and without the changes and you will see the difference):
https://www.hardfought.org/userdata/T/Tangles/un531/ttyrec/2017-05-31.09:14:57.ttyrec
https://s3.amazonaws.com/altorg/ttyrec/Tangles/2015-12-05.09:26:30.ttyrec.bz2

Cheers!

[NHTangles]

The inclusion by the NetHack devteam of the curses windowport in the official NetHack source tree (NetHack 3.6.2beta01 - not yet released) seems like a good reason to bump this. This beta is already getting a lot of play on the hardfought.org public server, and when it goes to release, demand for curses support in ttyplay is only going to increase. Is there anything I can help you out with to make these changes easier for you to merge?