Incorrect triplet configuration for Project Reunion sample app

[soumyamahunt]

Describe the bug
The Project Reunion Hello World sample shows a C++ sample that demonstrates some ProjectReunion APIs. Using vcpkg for this project, the VcpkgOSTarget is incorrectly detected as uwp instead of windows.

Environment

• OS: Windows
• Compiler: revision

To Reproduce
Steps to reproduce the behavior:

1. Download the Reunion Hello World Sample.
2. Open the project in Visual Studio.
3. Create a vcpkg manifest file in the project directory and declare some dependencies.
4. Build solution and notice the triplet chosen in build log.

Expected behavior
On looking into vcpkg.props file, VcpkgOSTarget is set to uwp when ApplicationType is Windows Store and ApplicationTypeRevision is 10.0. Both holds true for the reunion sample. Instead AppContainerApplication should be checked and VcpkgOSTarget will be set to uwp only if AppContainerApplication is true. Use this:

<VcpkgOSTarget Condition="'$(AppContainerApplication)' == 'true'">uwp</VcpkgOSTarget>

instead of this:

<VcpkgOSTarget Condition="'$(ApplicationType)|$(ApplicationTypeRevision)' == 'Windows Store|10.0'">uwp</VcpkgOSTarget>