Initial Test Workflow

Doesn't include caching for dependencies, but we don't really have any yet...

.github/workflows/test.yaml

@@ -0,0 +1,33 @@
+name: Run Tests
+
+on:
+  push:
+    branches: ["*"]
+  pull_request:
+    branches: ["*"]
+
+jobs:
+  build:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [windows-latest, ubuntu-latest]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          lfs: true
+
+      - name: Setup .NET
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: 9.0
+
+      - name: Restore Dependencies
+        run: dotnet restore
+
+      - name: Build
+        run: dotnet build --configuration Release --no-restore
+
+      - name: Run Tests
+        run: dotnet test --configuration Release --no-restore --verbosity normal