dcpomatic/src/lib/ansi.h, branch main

dcpomatic/src/lib/ansi.h, branch main DCP-o-matic DCP tools https://git.carlh.net/cgit/dcpomatic/atom?h=main 2023-03-03T00:17:41Z Add ansi.h and one define. 2023-03-03T00:17:41Z Carl Hetherington cth@carlh.net 2023-02-24T00:13:22Z urn:sha1:230e5c57553a8c19863bb1c9d0aa4136a359cf61