flatwhatson/prescheme-demo: A collection of example programs in Pre-Scheme @ 8ed1788b549daf7c9ac21444d7a37004cd99ce31

Andrew Whatson 6a8db54831 Add game-of-life demo with ps-grid, ps-sdl2 libs		3 mesi fa
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ps-init.h	e310553387 Tidy up headers and package definitions	3 mesi fa
ps-sdl2.h	6a8db54831 Add game-of-life demo with ps-grid, ps-sdl2 libs	3 mesi fa