增加Mediat Pip特性，并用实例来做一个demo

Modules/Store.Users/Store.Users.csproj

@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
 
@@ -7,6 +7,7 @@
   <ItemGroup>
     <ProjectReference Include="..\..\Store.Framework\Store.Framework.csproj" />
     <ProjectReference Include="..\Store.Shops.Contracts\Store.Shops.Contracts.csproj" />
+    <ProjectReference Include="..\Store.Shops\Store.Shops.csproj" />
     <ProjectReference Include="..\Store.Users.Contracts\Store.Users.Contracts.csproj" />
   </ItemGroup>