Added Akka.Cluster package to Tests projects. Some tests was failing due to it missing.

Author: andrey.leskov

GridDomain.Domain.Tests/GridDomain.Tests.csproj

@@ -38,6 +38,10 @@
       <HintPath>..\packages\Akka.1.1.1\lib\net45\Akka.dll</HintPath>
       <Private>True</Private>
     </Reference>
+    <Reference Include="Akka.Cluster, Version=1.1.1.27, Culture=neutral, processorArchitecture=MSIL">
+      <HintPath>..\packages\Akka.Cluster.1.1.1\lib\net45\Akka.Cluster.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
     <Reference Include="Akka.DI.Core, Version=1.1.1.27, Culture=neutral, processorArchitecture=MSIL">
       <HintPath>..\packages\Akka.DI.Core.1.1.1\lib\net45\Akka.DI.Core.dll</HintPath>
       <Private>True</Private>

GridDomain.Domain.Tests/packages.config

@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="Akka" version="1.1.1" targetFramework="net461" />
+  <package id="Akka.Cluster" version="1.1.1" targetFramework="net461" />
   <package id="Akka.DI.Core" version="1.1.1" targetFramework="net461" />
   <package id="Akka.DI.Unity" version="1.1.0" targetFramework="net461" />
   <package id="Akka.Logger.Serilog" version="1.1.1" targetFramework="net461" />