Fix: Setting correct ManagedAddIn.InstallationSource for NuGet installs in AddInSetup.
Added first AddInSetup unit tests.
Fix: Update cancellation for AddIns without "nuGetPackageID" manifest property not possible.
Extended AddInSetupTests to test installation and update cancellation of offline and NuGet AddIns.
Introduced more stable way to identify NuGet package updates for already installed AddIns.
Now showing installed and updated version of NuGet packages, if updatable.
- Introduced more stable way to identify NuGet package updates for already installed AddIns.
- Now showing installed and updated version of NuGet packages, if updatable.