Merge branch 'move_games' into 'master'

recipes/demos/sdl2-gears/gears.c

recipes/demos/sdl2-gears/recipe.sh

recipes/games/classicube/manifest

recipes/games/classicube/recipe.toml

recipes/games/eduke32/manifest

recipes/games/eduke32/recipe.toml

recipes/games/freedoom/recipe.toml

recipes/games/gigalomania/manifest

recipes/games/gigalomania/recipe.sh

recipes/games/neverball/manifest-neverball

recipes/games/neverball/manifest-neverputt

recipes/games/neverball/recipe.sh

recipes/games/openttd/manifest

recipes/games/openttd/recipe.sh

recipes/games/prboom/recipe.sh

recipes/games/vvvvvv/recipe.sh