Add github action for CI

.github/workflows/ci-cd.yml

@@ -0,0 +1,33 @@
+name: CI/CD
+
+on:
+  push:
+    branches: [ "master" ]
+  pull_request:
+    branches: [ "master" ]
+
+jobs:
+  build-test-pack:
+    runs-on: windows-latest
+    concurrency:
+      group: ${{ github.workflow }}-${{ github.ref }}
+      cancel-in-progress: true
+    steps:
+    - uses: actions/checkout@v4
+      with:
+        fetch-depth: 0
+    - name: Setup .NET
+      uses: actions/setup-dotnet@v4
+      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: Pack
+      run: dotnet pack --configuration Release --no-build
+    - name: Publish
+      if: github.event_name != 'pull_request'
+      run: dotnet nuget push ".\src\Overcrowdin\nupkg\Overcrowdin*.nupkg" -k ${{ secrets.NUGET_TOKEN }}-s https://api.nuget.org/v3/index.json