+rswift (#2630)

* +rswift

* Try to fix CI

* remove redundant download

* or do it correctly

* yaml requirements

---------

Co-authored-by: Jacob Heider <jacob@tea.xyz>

projects/github.com/mac-cain13/R.swift/package.yml

@@ -0,0 +1,21 @@
+distributable:
+  url: https://github.com/mac-cain13/R.swift/releases/download/{{version}}/rswift-{{version}}.zip
+
+versions:
+  github: mac-cain13/R.swift
+
+platforms:
+  - darwin
+
+provides:
+  - bin/rswift
+
+warnings:
+  - vendored
+
+build:
+  working-directory: ${{prefix}}/bin
+  script: mv "$SRCROOT"/rswift .
+
+test: |
+  [[ "$(rswift --version)" = "{{version}}" ]]