调整程序集依赖关系，DotNet.Model不需要引用DotNet.Loader,

因为Unity.Model为了完全不引用Unity的程序集，所以Unity.Model也并不引用Unity.Loader,
这里让Unity跟DotNet两者保持一致

DotNet/App/DotNet.App.csproj

@@ -28,6 +28,7 @@
   </PropertyGroup>
 
   <ItemGroup>
+    <ProjectReference Include="..\Loader\DotNet.Loader.csproj" />
     <ProjectReference Include="..\Model\DotNet.Model.csproj" />
   </ItemGroup>
 </Project>

DotNet/Model/DotNet.Model.csproj

@@ -46,7 +46,6 @@
         <ProjectReference Include="..\..\Share\Analyzer\Share.Analyzer.csproj" OutputItemType="Analyzer" ReferenceOutputAssembly="false" />
         <ProjectReference Include="..\..\Share\Share.SourceGenerator\Share.SourceGenerator.csproj" OutputItemType="Analyzer" ReferenceOutputAssembly="false" />
         <ProjectReference Include="..\Core\DotNet.Core.csproj" />
-        <ProjectReference Include="..\Loader\DotNet.Loader.csproj" />
         <ProjectReference Include="..\ThirdParty\DotNet.ThirdParty.csproj" />
     </ItemGroup> 
     <ItemGroup>