修复ThirdParty工程设置，导出runtime dlls

DotNet/ThirdParty/DotNet.ThirdParty.csproj

@@ -50,21 +50,27 @@
     <ItemGroup>
       <Content Include="..\..\Unity\Assets\Plugins\MacOS\x86_64\libkcp.dylib">
         <Link>Runtimes\MacOS\libkcp.dylib</Link>
+        <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
       </Content>
       <Content Include="..\..\Unity\Assets\Plugins\MacOS\x86_64\libRecastDll.dylib">
         <Link>Runtimes\MacOS\libRecastDll.dylib</Link>
+        <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
       </Content>
       <Content Include="..\..\Unity\Assets\Plugins\x86_64\kcp.dll">
         <Link>Runtimes\X86_64\kcp.dll</Link>
+        <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
       </Content>
       <Content Include="..\..\Unity\Assets\Plugins\x86_64\libkcp.so">
         <Link>Runtimes\Linux\libkcp.so</Link>
+        <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
       </Content>
       <Content Include="..\..\Unity\Assets\Plugins\x86_64\libRecastDll.so">
         <Link>Runtimes\Linux\libRecastDll.so</Link>
+        <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
       </Content>
       <Content Include="..\..\Unity\Assets\Plugins\x86_64\RecastDll.dll">
         <Link>Runtimes\X86_64\RecastDll.dll</Link>
+        <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
       </Content>
     </ItemGroup>