Add C# Lib and xunittest templates

Adding the C# lib and xunittest templates to `dotnet new`. These need
to be invoked with the `dotnet new -t lib` and `dotnet new -t
xunittest` keywords respectively.

src/dotnet/commands/dotnet-new/CSharp_Lib/Library.cs

@@ -0,0 +1,11 @@
+using System;
+
+namespace ClassLibrary
+{
+    public class Class1
+    {
+        public void Method1()
+        {    
+        }
+    }
+}

src/dotnet/commands/dotnet-new/CSharp_Lib/project.json.template

@@ -0,0 +1,9 @@
+{
+  "version": "1.0.0-*",
+  "dependencies": {
+    "NETStandard.Library": "1.5.0-rc3-24126-00"
+  },
+  "frameworks": {
+    "netstandard1.5": {}
+  }
+}

src/dotnet/commands/dotnet-new/CSharp_xunittest/Tests.cs

@@ -0,0 +1,14 @@
+using System;
+using Xunit;
+
+namespace Tests
+{
+    public class Tests
+    {
+        [Fact]
+        public void Test1() 
+        {
+            Assert.True(true);
+        }
+    }
+}

src/dotnet/commands/dotnet-new/CSharp_xunittest/project.json.template

@@ -0,0 +1,26 @@
+{
+    "version": "1.0.0-*",
+
+    "dependencies": {
+        "System.Runtime.Serialization.Primitives": "4.1.1-rc2-24008",
+        "xunit": "2.1.0",
+        "dotnet-test-xunit": "1.0.0-dev-140469-38"
+    },
+
+    "testRunner":  "xunit",
+
+    "frameworks": {
+        "netcoreapp1.0": {
+            "dependencies": {
+                "Microsoft.NETCore.App": {
+                    "type": "platform",
+                    "version": "1.0.0-rc3-004312"
+                }
+            },
+            "imports": [
+                "dotnet5.4",
+                "portable-net451+win8"
+            ]
+        }
+    }
+}

src/dotnet/commands/dotnet-new/Program.cs

@@ -84,7 +84,7 @@ namespace Microsoft.DotNet.Tools.New
             var dotnetNew = new NewCommand();
             app.OnExecute(() => {
 
-                var csharp = new { Name = "C#", Alias = new[] { "c#", "cs", "csharp" }, TemplatePrefix = "CSharp", Templates = new[] { "Console", "Web" } };
+                var csharp = new { Name = "C#", Alias = new[] { "c#", "cs", "csharp" }, TemplatePrefix = "CSharp", Templates = new[] { "Console", "Web", "Lib", "xunittest" } };
                 var fsharp = new { Name = "F#", Alias = new[] { "f#", "fs", "fsharp" }, TemplatePrefix = "FSharp", Templates = new[] { "Console" } };
                 
                 string languageValue = lang.Value() ?? csharp.Name;

src/dotnet/project.json

@@ -5,6 +5,8 @@
     "embed": {
       "include": [
         "commands/dotnet-new/CSharp_Console.zip",
+        "commands/dotnet-new/CSharp_Lib.zip",
+        "commands/dotnet-new/CSharp_xunittest.zip",
         "commands/dotnet-new/FSharp_Console.zip",
         "commands/dotnet-new/CSharp_Web.zip"
       ]
@@ -13,7 +15,9 @@
       "exclude": [
         "commands/dotnet-new/CSharp_Console/**",
         "commands/dotnet-new/FSharp_Console/**",
-        "commands/dotnet-new/CSharp_Web/**"
+        "commands/dotnet-new/CSharp_Web/**",
+        "commands/dotnet-new/CSharp_Lib/**",
+        "commands/dotnet-new/CSharp_xunittest/**"
       ]
     }
   },