Fix CppUnitTestFramework package layout (#3695)

Fix CppUnitTestFramework package layout

Author: MarcoRossignoli

src/package/VSIXProject/TestPlatform.csproj

@@ -189,6 +189,9 @@
     <VsixSourceItem Include="$(VsixInputFileLocation)\Extensions\Cpp\x64\*.*" Exclude="$(VsixInputFileLocation)\Extensions\Cpp\x64\*.pdb">
       <VSIXSubPath>Extensions\Cpp\x64</VSIXSubPath>
     </VsixSourceItem>
+    <VsixSourceItem Include="$(VsixInputFileLocation)\Extensions\Cpp\arm64\*.*" Exclude="$(VsixInputFileLocation)\Extensions\Cpp\arm64\*.pdb">
+      <VSIXSubPath>Extensions\Cpp\arm64</VSIXSubPath>
+    </VsixSourceItem>
 
     <VsixSourceItem Include="$(VsixInputFileLocation)\Extensions\TestImpact\ComComponents\x64\*.*">
       <VSIXSubPath>Extensions\TestImpact\ComComponents\x64</VSIXSubPath>