Update it all, VisualStudio Changes

fsharp/example/Example.fs

@@ -0,0 +1,4 @@
+module Example
+
+type Example() =
+    member this.Add(x, y) = x + y

fsharp/example/ExampleTest.fs

@@ -0,0 +1,16 @@
+module SumOfMultiplesTest
+
+open NUnit.Framework
+open Example
+
+[<TestFixture>]
+type ExampleTest() =
+    let mutable example = Example()
+    
+    [<Test>]
+    [<TestCase(2, 2, 4)>]
+    [<TestCase(12, 24, 36)>]
+    [<TestCase(100, 1, 101)>]
+    [<TestCase(2, -2, 0)>]
+    member tc.Can_add(x, y, expected) = 
+        Assert.That(example.Add(x, y), Is.EqualTo(expected))