Tweaked OS Detection project structure and added os check for PT Run

[arjunbalgovind]

Summary of the Pull Request

This PR fixes the issue of PowerLauncher.exe getting launched on OS version less than 19H1 and also makes a few changes to the os-detection project structure.

• os-detect.cpp and os-detect.h references have been added to common project. That way we can use the functions in C++ executables/dlls directly by referencing and without requiring os-detection.dll in that folder.
• The reference to os-detection.dll in runner has been removed, and instead the method is accessed from common
• os-detection.dll is still required for Image Resizer so no change has been made to affect that. In the future we could merge os-detection.dll into the PowerToysInterop library to reduce the number of additional projects/dlls.
• In the Microsoft.Launcher project (which is the PowerToyModule project for PT Run), under the enable method where PowerLauncher.exe is launched a check has been added to launch the executable only if it matches the OS requirement.

References

PR Checklist

• Applies to [PT Run] Should not try to start on 1809 and earlier #3730
• CLA signed. If not, go over here and sign the CLA

Validation Steps Performed

Verified that behavior is as expected for Launcher/ImageResizer/Settings on 1909, 1809 VM and an internal build number VM. Only for the 1809 VM the old settings would be loaded, image resizer would use its old settings UI, and PowerLauncher.exe would not be launched.

[arjunbalgovind]

The only change made on this file was the following:
Earlier it was

enable() 
{
  logic; 
  m_enabled=true;
}

Now it is

enable() 
{
  if (UseNewSettings())
  {
    logic;
  }
  m_enabled = true;
}

[arjunbalgovind]

@enricogior this solves #3730 and partially solves some of the issues in #3579 . I have still kept the dll since it is required for Image Resizer so that it can make it's old settings UI visible when the OS version is older than 19h1.

[enricogior]

@arjunbalgovind
we should remove the DLL and use the PowerToysInterop DLL instead. Having one DLL for one function is not ideal, otherwise we end up adding individual DLLs every time we have to expose something to C# projects. But we can merge your PR and complete the work later on, so please keep #3579 open after merging this. Thank you.

[enricogior]

LGTM.