[Build][CP to Main] Mitigate BinSkim errors (#399)

* Add Directory.Build.props (#378)

* [Build] Ensure chaining of directory.build.props files reaches the new central one for Sample apps (#380)

---------

Co-authored-by: Bob Pulliam <bpulliam@gmail.com>

Author: alexlamtest

Diff for: Samples/Directory.Build.props

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemDefinitionGroup>
+    <ClCompile>
+      <AdditionalOptions>%(AdditionalOptions) /Qspectre</AdditionalOptions>
+      <!-- /GS Enable Control Flow Guard -->
+      <ControlFlowGuard>Guard</ControlFlowGuard>
+      <!-- Setting this to be compatible with CFG -->
+      <DebugInformationFormat>OldStyle</DebugInformationFormat>
+      <SDLCheck>true</SDLCheck>
+    </ClCompile>
+    <Link>
+      <!-- dynamicbase is required for enabling CFG -->
+      <AdditionalOptions>%(AdditionalOptions) /dynamicbase</AdditionalOptions>
+      <!-- /GS Enable Control Flow Guard -->
+      <ControlFlowGuard>Guard</ControlFlowGuard>
+      <CETCompat Condition="'$(Platform)'!='ARM64'">true</CETCompat>
+    </Link>
+  </ItemDefinitionGroup>
+</Project>

Diff for: Samples/SelfContainedDeployment/cpp/cpp-console-unpackaged/Directory.Build.props

@@ -1,4 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-	<Import Project="$(MSBuildThisFileDirectory)HybridCRT.props" />
+  <Import Project="$([MSBuild]::GetPathOfFileAbove('Directory.Build.props', '$(MSBuildThisFileDirectory)../'))" />
+  <Import Project="$(MSBuildThisFileDirectory)HybridCRT.props" />
 </Project>

Diff for: Samples/SelfContainedDeployment/cpp/cpp-winui-packaged/Directory.Build.props

@@ -1,4 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-	<Import Project="$(MSBuildThisFileDirectory)HybridCRT.props" />
+  <Import Project="$([MSBuild]::GetPathOfFileAbove('Directory.Build.props', '$(MSBuildThisFileDirectory)../'))" />
+  <Import Project="$(MSBuildThisFileDirectory)HybridCRT.props" />
 </Project>

Diff for: Samples/SelfContainedDeployment/cpp/cpp-winui-unpackaged/Directory.Build.props

@@ -1,4 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-	<Import Project="$(MSBuildThisFileDirectory)HybridCRT.props" />
+  <Import Project="$([MSBuild]::GetPathOfFileAbove('Directory.Build.props', '$(MSBuildThisFileDirectory)../'))" />
+  <Import Project="$(MSBuildThisFileDirectory)HybridCRT.props" />
 </Project>