Add project files.

HardHat.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 14
+VisualStudioVersion = 14.0.25420.1
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "src", "src", "{2213F1A9-1E90-473E-A04F-F089BBC16098}"
+EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution Items", "{597DE320-32E2-4B4E-80E5-33838AA160E5}"
+	ProjectSection(SolutionItems) = preProject
+		global.json = global.json
+	EndProjectSection
+EndProject
+Project("{8BB2217D-0F2D-49D1-97BC-3654ED321F3B}") = "HardHat", "src\HardHat\HardHat.xproj", "{B4448494-6C80-4BDA-890C-D8900B33FE17}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{B4448494-6C80-4BDA-890C-D8900B33FE17}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{B4448494-6C80-4BDA-890C-D8900B33FE17}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{B4448494-6C80-4BDA-890C-D8900B33FE17}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{B4448494-6C80-4BDA-890C-D8900B33FE17}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(NestedProjects) = preSolution
+		{B4448494-6C80-4BDA-890C-D8900B33FE17} = {2213F1A9-1E90-473E-A04F-F089BBC16098}
+	EndGlobalSection
+EndGlobal

global.json

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+{
+  "projects": [ "src", "test" ],
+  "sdk": {
+    "version": "1.0.0-preview2-003131"
+  }
+}

src/HardHat/Class1.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace HardHat
+{
+    public class Class1
+    {
+        public Class1()
+        {
+        }
+    }
+}

src/HardHat/HardHat.xproj

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+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <VisualStudioVersion Condition="'$(VisualStudioVersion)' == ''">14.0</VisualStudioVersion>
+    <VSToolsPath Condition="'$(VSToolsPath)' == ''">$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)</VSToolsPath>
+  </PropertyGroup>
+
+  <Import Project="$(VSToolsPath)\DotNet\Microsoft.DotNet.Props" Condition="'$(VSToolsPath)' != ''" />
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>b4448494-6c80-4bda-890c-d8900b33fe17</ProjectGuid>
+    <RootNamespace>HardHat</RootNamespace>
+    <BaseIntermediateOutputPath Condition="'$(BaseIntermediateOutputPath)'=='' ">.\obj</BaseIntermediateOutputPath>
+    <OutputPath Condition="'$(OutputPath)'=='' ">.\bin\</OutputPath>
+    <TargetFrameworkVersion>v4.6.2</TargetFrameworkVersion>
+  </PropertyGroup>
+
+  <PropertyGroup>
+    <SchemaVersion>2.0</SchemaVersion>
+  </PropertyGroup>
+  <Import Project="$(VSToolsPath)\DotNet\Microsoft.DotNet.targets" Condition="'$(VSToolsPath)' != ''" />
+</Project>

src/HardHat/Properties/AssemblyInfo.cs

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+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// General Information about an assembly is controlled through the following
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("HardHat")]
+[assembly: AssemblyTrademark("")]
+
+// Setting ComVisible to false makes the types in this assembly not visible
+// to COM components.  If you need to access a type in this assembly from
+// COM, set the ComVisible attribute to true on that type.
+[assembly: ComVisible(false)]
+
+// The following GUID is for the ID of the typelib if this project is exposed to COM
+[assembly: Guid("b4448494-6c80-4bda-890c-d8900b33fe17")]

src/HardHat/project.json

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+{
+  "version": "1.0.0-*",
+
+  "dependencies": {
+    "NETStandard.Library": "1.6.0"
+  },
+
+  "frameworks": {
+    "netstandard1.6": {
+      "imports": "dnxcore50"
+    }
+  }
+}