docker files fixes from liaqat

src/Managing.Infrastructure.Worker/Managing.Infrastructure.Worker.csproj

@@ -0,0 +1,7 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>netstandard2.0</TargetFramework>
+  </PropertyGroup>
+
+</Project>

src/Managing.Infrastructure.Worker/WorkerService.cs

@@ -0,0 +1,8 @@
+using System;
+
+namespace Managing.Infrastructure.Worker
+{
+    public class Class1
+    {
+    }
+}