Created SPM GitHub action

Points to latest stable Xcode and Swift version

.github/workflows/swift.yml

@@ -0,0 +1,34 @@
+# This workflow will build a Swift project
+# For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-swift
+
+name: Swift
+
+on:
+  workflow_dispatch:
+  pull_request:
+    branches: [ "main" ]
+
+jobs:
+  build:
+
+    runs-on: macos-latest
+
+    steps:
+    - name: Setup Xcode version (Latest Stable)
+    - uses: maxim-lobanov/setup-xcode@v1
+      with:
+        xcode-version: latest-stable
+
+
+    - uses: swift-actions/setup-swift@v2
+
+    - name: Get swift version
+      run: swift --version
+
+    - uses: actions/checkout@v3
+
+    - name: Build
+      run: swift build -v
+
+    - name: Run tests
+      run: swift test -v