Added github workflows.

.github/dependabot.yml

@@ -0,0 +1,11 @@
+# To get started with Dependabot version updates, you'll need to specify which
+# package ecosystems to update and where the package manifests are located.
+# Please see the documentation for all configuration options:
+# https://docs.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
+
+version: 2
+updates:
+  - package-ecosystem: "nuget" # See documentation for possible values
+    directory: "/" # Location of package manifests
+    schedule:
+      interval: "weekly"

.github/release.yml

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+# .github/release.yml
+
+changelog:
+  categories:
+    - title: Changes
+      labels:
+        - "*"

.github/workflows/main.yml

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+name: Release
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+
+jobs:
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+    permissions:
+      actions: read
+      contents: read
+      security-events: write
+
+    strategy:
+      fail-fast: false
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+      - name: Initialize CodeQL
+        uses: github/codeql-action/init@v2
+        with:
+          languages: 'csharp'
+      - name: Setup .NET 6.0
+        uses: actions/setup-dotnet@v3
+        with:
+          dotnet-version: 6.0.x
+      - name: Setup .NET 7.0
+        uses: actions/setup-dotnet@v3
+        with:
+          dotnet-version: 7.0.x
+      - name: Setup .NET 8.0
+        uses: actions/setup-dotnet@v3
+        with:
+          dotnet-version: 8.0.x
+      - name: Restore dependencies
+        run: dotnet restore
+      - name: Build
+        run: dotnet build --configuration Release --no-restore
+      - name: Test
+        run: dotnet test --configuration Release --no-build --verbosity normal
+      - name: Perform CodeQL Analysis
+        uses: github/codeql-action/analyze@v2

.github/workflows/publish.yml

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+name: Publish
+
+on:
+  release:
+    types: [published]
+
+jobs:
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+    permissions:
+      actions: read
+      contents: read
+      security-events: write
+
+    strategy:
+      fail-fast: false
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v3
+    - name: Setup .NET 6.0
+      uses: actions/setup-dotnet@v3
+      with:
+        dotnet-version: 6.0.x
+    - name: Setup .NET 7.0
+      uses: actions/setup-dotnet@v3
+      with:
+        dotnet-version: 7.0.x
+    - name: Setup .NET 8.0
+      uses: actions/setup-dotnet@v3
+      with:
+        dotnet-version: 8.0.x
+    - name: Restore dependencies
+      run: dotnet restore
+    - name: Build
+      run: dotnet build --configuration Release --no-restore
+    - name: Pack
+      run: dotnet pack --configuration Release --no-build --output .
+    - name: Push to NuGet
+      run: dotnet nuget push "*.nupkg" --api-key ${{secrets.NUGET_API_KEY}} --source https://api.nuget.org/v3/index.json