Add NuGet package attributes and sign package.

Author: bgrainger

MySqlConnector.snk

@@ -1,11 +1,37 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
+    <AssemblyName>AdoNet.Specification.Tests</AssemblyName>
+    <PackageId>AdoNet.Specification.Tests</PackageId>
+    <Title>ADO.NET Specification Tests</Title>
+    <Description>Shared test suite for ADO.NET providers.</Description>
+    <Copyright>Copyright 2017 Bradley Grainger</Copyright>
+    <VersionPrefix>1.0.0</VersionPrefix>
+    <SignAssembly>true</SignAssembly>
+    <PublicSign Condition=" '$(OS)' != 'Windows_NT' ">true</PublicSign>
+    <AssemblyOriginatorKeyFile>..\..\MySqlConnector.snk</AssemblyOriginatorKeyFile>
+    <Authors>Bradley Grainger</Authors>
     <TargetFramework>netstandard2.0</TargetFramework>
+    <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
+    <PackageTags>ado.net;database;test</PackageTags>
+    <PackageReleaseNotes>Initial release</PackageReleaseNotes>
+    <PackageProjectUrl>https://github.com/mysql-net/AdoNetApiTest</PackageProjectUrl>
+    <PackageLicenseUrl>https://opensource.org/licenses/MIT</PackageLicenseUrl>
+    <RepositoryType>git</RepositoryType>
+    <RepositoryUrl>https://github.com/mysql-net/AdoNetApiTest.git</RepositoryUrl>
+    <DebugType>embedded</DebugType>
+    <LangVersion>latest</LangVersion>
+    <IsPackable>true</IsPackable>
   </PropertyGroup>
 
   <ItemGroup>
     <PackageReference Include="xunit" Version="2.3.1" />
   </ItemGroup>
 
+  <ItemGroup Condition=" '$(OS)' == 'Windows_NT' ">
+    <PackageReference Include="SourceLink.Create.CommandLine" Version="2.5.0" PrivateAssets="All" />
+    <DotNetCliToolReference Include="dotnet-sourcelink" Version="2.5.0" />
+    <PackageReference Include="SourceLink.Test" Version="2.5.0" PrivateAssets="all" />
+  </ItemGroup>
+
 </Project>