把一些项目移动到插件中

Plugins/Directory.Build.targets

@@ -0,0 +1,30 @@
+<Project>
+  <Import Project="../Directory.Build.targets" />
+  <Target Name="CopyPluginToHost" AfterTargets="Build"
+          Condition="'$(DesignTimeBuild)' != 'true' and '$(IsCrossTargetingBuild)' != 'true'">
+    <ItemGroup>
+      <!-- 一个部署子目录只容纳一个插件入口，清理重命名之前遗留的入口产物。 -->
+      <_ObsoletePluginDeps Include="$(PluginDeploymentDirectory)*.deps.json;$(TargetDir)*.deps.json"
+                           Exclude="$(PluginDeploymentDirectory)$(TargetName).deps.json;$(TargetDir)$(TargetName).deps.json">
+        <EntryName>$([System.IO.Path]::GetFileNameWithoutExtension('%(Filename)'))</EntryName>
+      </_ObsoletePluginDeps>
+      <_ObsoletePluginEntry Include="@(_ObsoletePluginDeps)" />
+      <_ObsoletePluginEntry Include="@(_ObsoletePluginDeps->'%(RootDir)%(Directory)%(EntryName).dll')" />
+      <_ObsoletePluginEntry Include="@(_ObsoletePluginDeps->'%(RootDir)%(Directory)%(EntryName).pdb')" />
+      <_ObsoletePluginEntry Include="@(_ObsoletePluginDeps->'%(RootDir)%(Directory)%(EntryName).runtimeconfig.json')" />
+    </ItemGroup>
+    <Delete Files="@(_ObsoletePluginEntry)" />
+    <ItemGroup>
+      <!-- 保留 runtimes 等子目录，包含入口、deps.json、配置及传递依赖。 -->
+      <_PluginDeploymentFile Include="$(TargetDir)**\*" Exclude="$(TargetDir)publish\**\*" />
+    </ItemGroup>
+    <Copy SourceFiles="@(_PluginDeploymentFile)"
+          DestinationFiles="@(_PluginDeploymentFile->'$(PluginDeploymentDirectory)%(RecursiveDir)%(Filename)%(Extension)')"
+          SkipUnchangedFiles="true" />
+    <FindHostDuplicatePluginFiles HostDirectory="$(StoreHostOutputPath)">
+      <Output TaskParameter="Duplicates" ItemName="_PluginDuplicateFile" />
+    </FindHostDuplicatePluginFiles>
+    <Delete Files="@(_PluginDuplicateFile)" />
+    <Message Importance="high" Text="插件已复制到 $(PluginDeploymentDirectory)" />
+  </Target>
+</Project>