Enh: Disable Windows GameDVR in msix

[shun2wang]

to disable Windows GameDVR in msix.

Im just added the .reg file but not make it work with Msix installer, I leave it to you @RensDofferhoff and you may push some commit in this PR.

Or we can do it by cmd/powershell script like:

reg add HKCU\Software\Microsoft\Windows\CurrentVersion\GameDVR /v AppCaptureEnabled /t REG_DWORD /d 0 /f
reg add HKCU\System\GameConfigStore /v GameDVR_Enabled /t REG_DWORD /d 0 /f
reg add HKLM\Software\Policies\Microsoft\Windows\GameDVR /v AllowGameDVR /t REG_DWORD /d 0 /f

Which is more easier?

[JorisGoosen]

When there is a working version of this @FBartos can be guinneapig

[shun2wang]

According to this document create a .dat registry file to make some virtual registry entries will works for MSIX things.

and then close this pr.