Merge branch 'recipe-categories' into 'master'

recipes/demos/osdemo/recipe.sh

recipes/demos/pixelcannon/recipe.sh

recipes/demos/rust-cairo-demo/recipe.sh

recipes/demos/sdl2_gears/assets/font.ttf

recipes/demos/sdl2_gears/assets/image.png

recipes/demos/sdl2_gears/assets/music.wav

recipes/demos/sdl2_gears/gears.c

recipes/demos/sdl2_gears/recipe.sh

recipes/development/autoconf/recipe.toml

recipes/development/automake/recipe.toml

recipes/development/cargo/recipe.toml

recipes/development/cmake/recipe.toml

recipes/development/crates-io-index/recipe.toml

recipes/development/fal/recipe.sh

recipes/development/fontconfig/recipe.toml

recipes/development/fontconfig/redox.patch

recipes/development/gawk/recipe.sh

recipes/development/gcc/recipe.sh

recipes/development/gdbserver/recipe.toml

recipes/development/gdk-pixbuf/recipe.sh