Create project files

.github/workflows/dotnet.yml

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+name: .NET Tests
+
+on:
+  push:
+    branches: [ "*" ]
+  pull_request:
+    branches: [ "*" ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup .NET
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: [6.0.x, 7.0.x, 8.0.x, 9.0.x]
+      - name: Restore dependencies
+        run: dotnet restore
+      - name: Build
+        run: dotnet build --no-restore /p:TreatWarningsAsErrors=false
+      - name: Test
+        run: dotnet test --no-build --verbosity normal

.github/workflows/nuget.yml

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+name: CI/CD NuGet Package
+
+on:
+  release:
+    types: [created]
+
+env:
+  NUGET_SOURCE: https://api.nuget.org/v3/index.json
+  GITHUB_SOURCE: https://nuget.pkg.github.com/${{ github.repository_owner }}/index.json
+
+jobs:
+  build-and-publish:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup .NET
+        uses: actions/setup-dotnet@v3
+        with:
+          dotnet-version: 7.0.x
+
+      - name: Extract Package Version
+        id: get_version
+        run: |
+          VERSION=${GITHUB_REF#refs/tags/v}
+          echo "PACKAGE_VERSION=$VERSION" >> $GITHUB_ENV
+          echo "Using version: $VERSION"
+
+      - name: Restore dependencies
+        run: dotnet restore
+
+      - name: Build
+        run: dotnet build --no-restore --configuration Release
+
+      - name: Test
+        run: dotnet test --no-build --verbosity normal --configuration Release
+
+      - name: Pack
+        run: dotnet pack --no-build --configuration Release -p:PackageVersion=${{ env.PACKAGE_VERSION }}
+      - name: Add GitHub source
+        run: dotnet nuget add source --username ${{ github.repository_owner }} --password ${{ secrets.GHCR_TOKEN }} --store-password-in-clear-text --name github ${{ env.GITHUB_SOURCE }}
+
+      - name: Publish to GitHub Packages
+        run: dotnet nuget push "**/*.nupkg" --source "github"
+
+      - name: Publish to NuGet
+        run: dotnet nuget push "**/*.nupkg" --source ${{ env.NUGET_SOURCE }} --api-key ${{ secrets.NUGET_API_KEY }}