[Build]Enable Control Flow Guard; required for MS binaries (#28910)

* Enable Control Flow Guard; it is a requirement for any MS binaries

As it says on the tin. Go go gadget VC!

* Disable CFG for CLR projects (boo)

* Disable E&C...

(cherry picked from commit f0c3f58468)

* okay, stop being surgical and just whack it

* Revert "okay, stop being surgical and just whack it"

This reverts commit e4e10c6b8a.

* Oh CLRSupport is a **property**

Cpp.Build.props

@@ -42,6 +42,9 @@
     <PreferredToolArchitecture Condition="'$(PROCESSOR_ARCHITECTURE)' == 'ARM64' or '$(PROCESSOR_ARCHITEW6432)' == 'ARM64'">arm64</PreferredToolArchitecture>
     <VcpkgEnabled>false</VcpkgEnabled>
     <ExternalIncludePath>$(MSBuildThisFileFullPath)\..\deps\;$(MSBuildThisFileFullPath)\..\packages\;$(ExternalIncludePath)</ExternalIncludePath>
+    <!-- Enable control flow guard for C++ projects that don't consume any C++ files -->
+    <!-- This covers the case where a .dll exports a .lib, but doesn't have any ClCompile entries. -->
+    <LinkControlFlowGuard>Guard</LinkControlFlowGuard>
   </PropertyGroup>
   <ItemDefinitionGroup>
     <ClCompile>
@@ -53,9 +56,12 @@
       <ConformanceMode>false</ConformanceMode>
       <TreatWarningAsError>true</TreatWarningAsError>
       <LanguageStandard>stdcpplatest</LanguageStandard>
-	<BuildStlModules>false</BuildStlModules>
+      <BuildStlModules>false</BuildStlModules>
       <AdditionalOptions>/await %(AdditionalOptions)</AdditionalOptions>
       <PreprocessorDefinitions>_UNICODE;UNICODE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <!-- CLR + CFG are not compatible >:{ -->
+      <ControlFlowGuard Condition="'$(CLRSupport)' == ''">Guard</ControlFlowGuard>
+      <DebugInformationFormat Condition="'%(ControlFlowGuard)' == 'Guard'">ProgramDatabase</DebugInformationFormat>
     </ClCompile>
     <Link>
       <SubSystem>Windows</SubSystem>