Add ion recipe

ebc3e64b · Jeremy Soller · a0b68cc4 · ebc3e64b
Verified Commit ebc3e64b authored 4 years ago by Jeremy Soller
--- a/recipes/ion/recipe.toml
+++ b/recipes/ion/recipe.toml
+[source]
+git = "https://gitlab.redox-os.org/redox-os/ion.git"
+branch = "master"
+[build]
+template = "cargo"