Bug 1578489 - New Windows installer icon. r=agashlin

This patch includes:
* The new icon file itself
* A modified Win32 SFX binary with the icon resource replaced and no other changes
* A rebuilt ARM64 binary (because rebuilding it is just as easy as resource hacking it)
* And I also took the opportunity to update the VC project to the 2019 toolchain
  and removed the requirement for a particular Windows 10 SDK version.

Differential Revision: https://phabricator.services.mozilla.com/D46846

--HG--
extra : moz-landing-system : lando

other-licenses/7zstub/firefox/SFXSetup.vcxproj

@@ -22,30 +22,30 @@
     <SccProjectName />
     <SccLocalPath />
     <ProjectGuid>{B348342A-1787-4311-B120-EDAE3018868F}</ProjectGuid>
-    <WindowsTargetPlatformVersion>10.0.17763.0</WindowsTargetPlatformVersion>
+    <WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
-    <PlatformToolset>v141</PlatformToolset>
+    <PlatformToolset>v142</PlatformToolset>
     <UseOfMfc>false</UseOfMfc>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|ARM64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
-    <PlatformToolset>v141</PlatformToolset>
+    <PlatformToolset>v142</PlatformToolset>
     <UseOfMfc>false</UseOfMfc>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseD|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
-    <PlatformToolset>v141</PlatformToolset>
+    <PlatformToolset>v142</PlatformToolset>
     <UseOfMfc>false</UseOfMfc>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseD|ARM64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
-    <PlatformToolset>v141</PlatformToolset>
+    <PlatformToolset>v142</PlatformToolset>
     <UseOfMfc>false</UseOfMfc>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>