added test base for Java and .NET

Author: anders-hallgren

Java.NET.msTest/Java.NET.msTest.csproj

@@ -0,0 +1,16 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
+
+    <IsPackable>false</IsPackable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.2.0" />
+    <PackageReference Include="MSTest.TestAdapter" Version="1.4.0" />
+    <PackageReference Include="MSTest.TestFramework" Version="1.4.0" />
+    <PackageReference Include="coverlet.collector" Version="1.0.1" />
+  </ItemGroup>
+
+</Project>

Java.NET.msTest/UnitTest1.cs

@@ -0,0 +1,13 @@
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+
+namespace Java.NET.msTest
+{
+    [TestClass]
+    public class UnitTest1
+    {
+        [TestMethod]
+        public void TestMethod1()
+        {
+        }
+    }
+}