Add recipes

recipes/wip/games/other/slint-tetris/recipe.toml

+#TODO not compiled or tested
+[source]
+git = "https://github.com/GaspardCulis/slint-tetris"
+[build]
+template = "cargo"

recipes/wip/gui/gpcl/recipe.toml

+#TODO not compiled or tested
+[source]
+git = "https://github.com/dngulin/gpcl"
+[build]
+template = "cargo"

recipes/wip/gui/ordinary/recipe.toml

+#TODO not compiled or tested
+[source]
+git = "https://gitlab.com/floers/ordinary"
+[build]
+template = "custom"
+script = """
+cookbook_cargo_packages ordinary
+"""

recipes/wip/tools/graphics/other/image-sieve/recipe.toml

+#TODO not compiled or tested
+[source]
+git = "https://github.com/Futsch1/image-sieve"
+[build]
+template = "cargo"