Added empty ASP.NET Bootstrap template

PongGame/Dockerfile

@@ -0,0 +1,21 @@
+#See https://aka.ms/containerfastmode to understand how Visual Studio uses this Dockerfile to build your images for faster debugging.
+
+FROM mcr.microsoft.com/dotnet/aspnet:6.0 AS base
+WORKDIR /app
+EXPOSE 80
+
+FROM mcr.microsoft.com/dotnet/sdk:6.0 AS build
+WORKDIR /src
+COPY ["PongGame/PongGame.csproj", "PongGame/"]
+RUN dotnet restore "PongGame/PongGame.csproj"
+COPY . .
+WORKDIR "/src/PongGame"
+RUN dotnet build "PongGame.csproj" -c Release -o /app/build
+
+FROM build AS publish
+RUN dotnet publish "PongGame.csproj" -c Release -o /app/publish /p:UseAppHost=false
+
+FROM base AS final
+WORKDIR /app
+COPY --from=publish /app/publish .
+ENTRYPOINT ["dotnet", "PongGame.dll"]