updating: split installer-related and github-related APIs, fix compilation error with latest VS

installer/PowerToysBootstrapper/bootstrapper/bootstrapper.cpp

@@ -4,8 +4,8 @@
 #include <common/common.h>
 #include <common/notifications.h>
 #include <common/RcResource.h>
-#include <common/updating/updating.h>
 #include <common/updating/dotnet_installation.h>
+#include <common/updating/installer.h>
 #include <common/version.h>
 #include <common/appMutex.h>
 #include <common/processApi.h>

installer/PowerToysBootstrapper/bootstrapper/pch.h

@@ -20,4 +20,8 @@
 #include <spdlog/sinks/null_sink.h>
 #include <spdlog/sinks/stdout_color_sinks.h>
 
+#include <winrt/base.h>
+#include <winrt/Windows.Foundation.h>
+#include <winrt/Windows.Foundation.Collections.h>
+
 #include <cxxopts.hpp>

installer/PowerToysSetupCustomActions/CustomAction.cpp

@@ -2,7 +2,7 @@
 
 #include <ProjectTelemetry.h>
 
-#include "../../src/common/updating/updating.h"
+#include "../../src/common/updating/installer.h"
 
 using namespace std;
 

installer/PowerToysSetupCustomActions/PowerToysSetupCustomActions.vcxproj

@@ -97,8 +97,6 @@
     <ClCompile>
       <PrecompiledHeader>Use</PrecompiledHeader>
       <PrecompiledHeaderFile>stdafx.h</PrecompiledHeaderFile>
-      <AdditionalOptions Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">/await /Zc:twoPhase- %(AdditionalOptions)</AdditionalOptions>
-      <AdditionalOptions Condition="'$(Configuration)|$(Platform)'=='Release|x64'">/await /Zc:twoPhase- %(AdditionalOptions)</AdditionalOptions>
     </ClCompile>
   </ItemDefinitionGroup>
   <ItemGroup>