message: Update package version to 0.4
diff: <PropertyGroup Label="Version">
  <!-- These fields are picked up by PackageES -->
  <VersionMajor>0</VersionMajor>
  - <VersionMinor>3</VersionMinor>
  + <VersionMinor>4</VersionMinor>
  </PropertyGroup>
  <PropertyGroup Label="Configuration">
  <TargetPlatformVersion>10.0.18362.0</TargetPlatformVersion>
  