Add a load of MSBuild nonsense to *avoid* targeting a specific Win SDK

* Even though we don't care about the windows SDK version at all, we actively
  need to avoid the default which actively sabotages us.

renderdoc/3rdparty/breakpad/client/windows/common.vcxproj

@@ -24,6 +24,7 @@
     <RootNamespace>common</RootNamespace>
     <ProjectName>breakpad_common</ProjectName>
   </PropertyGroup>
+  <Import Project="$(SolutionDir)\util\WindowsSDKTarget.props" />
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
   <PropertyGroup Label="Configuration">
     <CharacterSet>Unicode</CharacterSet>

renderdoc/3rdparty/breakpad/client/windows/crash_generation/crash_generation_client.vcxproj

@@ -23,6 +23,7 @@
     <Keyword>Win32Proj</Keyword>
     <RootNamespace>crash_generation_client</RootNamespace>
   </PropertyGroup>
+  <Import Project="$(SolutionDir)\util\WindowsSDKTarget.props" />
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
   <PropertyGroup Label="Configuration">
     <CharacterSet>Unicode</CharacterSet>

renderdoc/3rdparty/breakpad/client/windows/crash_generation/crash_generation_server.vcxproj

@@ -23,6 +23,7 @@
     <Keyword>Win32Proj</Keyword>
     <RootNamespace>crash_generation_server</RootNamespace>
   </PropertyGroup>
+  <Import Project="$(SolutionDir)\util\WindowsSDKTarget.props" />
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
   <PropertyGroup Label="Configuration">
     <CharacterSet>Unicode</CharacterSet>

renderdoc/3rdparty/breakpad/client/windows/handler/exception_handler.vcxproj

@@ -23,6 +23,7 @@
     <Keyword>Win32Proj</Keyword>
     <RootNamespace>exception_handler</RootNamespace>
   </PropertyGroup>
+  <Import Project="$(SolutionDir)\util\WindowsSDKTarget.props" />
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
   <PropertyGroup Label="Configuration">
     <CharacterSet>Unicode</CharacterSet>