Add nuget yaml

.github/workflows/nuget.yml

@@ -0,0 +1,28 @@
+name: Publish to Nuget
+
+on: 
+  workflow_dispatch:
+    inputs:
+      version:
+        required: true
+        type: string
+
+jobs:
+  build:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ windows-latest ]
+
+    steps:
+      - uses: actions/checkout@v2
+      - name: Setup .NET
+        uses: actions/setup-dotnet@v1
+        with:
+          dotnet-version: 7.x
+      - name: Pack
+        run: dotnet pack /p:Version=${{ inputs.version }} --output .
+      - name: Push
+        env:
+          NUGET_KEY: ${{ secrets.NUGET_API_KEY }}
+        run: dotnet nuget push innersloth.Hazel-Networking.${{ inputs.version }}.nupkg --source https://api.nuget.org/v3/index.json --api-key "%NUGET_KEY%"