Desktop system API extension

This extension adds a variety of the desktop system APIs to the adapter. These include LaunchManifestAsync and GetAllApplications.

To use the extension:

1. Reference the OpenFin.Net.Adapter.Extensions.DesktopSystem package from NuGet.

2. Activate the extension as part of the Runtime builder process, by adding a call to UseDesktopSystem.

IRuntime runtime = new RuntimeFactory()
             .UseDesktopSystem()
             .GetRuntimeInstance(new RuntimeOptions
             {
                 Version = "stable",
                 UUID = "UUID_STRING",
                 LicenseKey = "LICENSE_KEY"
             });

To access the API, query the Runtime for IDesktopSystem. For example:

var desktopSystem = runtime.GetService<IDesktopSystem>();

var apps = await desktopSystem.GetAllApplicationsAsync();