Update abstractions package to release version

Author: Iain Scott

src/Winton.DomainModelling.AspNetCore/Winton.DomainModelling.AspNetCore.csproj

@@ -30,7 +30,7 @@
     <PackageReference Include="GitVersionTask" Version="4.0.0-beta0012" PrivateAssets="All" />
     <PackageReference Include="Microsoft.AspNetCore.Mvc.Core" Version="2.0.0" />
     <PackageReference Include="StyleCop.Analyzers" Version="1.0.2" PrivateAssets="All" />
-    <PackageReference Include="Winton.DomainModelling.Abstractions" Version="0.1.0-*" />
+    <PackageReference Include="Winton.DomainModelling.Abstractions" Version="1.0.0" />
   </ItemGroup>
 
 </Project>