feat(csproj): add System.ValueTuple

Author: jaredcnance

src/JsonApiDotNetCore/JsonApiDotNetCore.csproj

@@ -1,19 +1,17 @@
 <Project Sdk="Microsoft.NET.Sdk">
-
   <PropertyGroup>
-    <VersionPrefix>1.2.2</VersionPrefix>
+    <VersionPrefix>1.3.0</VersionPrefix>
     <TargetFramework>netcoreapp1.0</TargetFramework>
     <AssemblyName>JsonApiDotNetCore</AssemblyName>
     <PackageId>JsonApiDotNetCore</PackageId>
     <RuntimeFrameworkVersion>1.1.1</RuntimeFrameworkVersion>
     <PackageTargetFallback>$(PackageTargetFallback);dnxcore50;portable-net45+win8</PackageTargetFallback>
   </PropertyGroup>
-
   <ItemGroup>
     <PackageReference Include="Microsoft.AspNetCore.Routing" Version="1.1.1" />
     <PackageReference Include="Microsoft.AspNetCore.Mvc" Version="1.1.2" />
     <PackageReference Include="Microsoft.EntityFrameworkCore" Version="1.1.1" />
     <PackageReference Include="Microsoft.Extensions.Logging" Version="1.1.1" />
+    <PackageReference Include="System.ValueTuple" Version="4.3.0" />
   </ItemGroup>
-
-</Project>
+</Project>