FancyZones and Shortcut Guide initial commit

Co-authored-by: Alexis Campailla <alexis@janeasystems.com>
Co-authored-by: Bret Anderson <bretan@microsoft.com>
Co-authored-by: Enrico Giordani <enrico.giordani@gmail.com>
Co-authored-by: Jaime Bernardo <jaime@janeasystems.com>
Co-authored-by: Jeff Bogdan <jeffbog@microsoft.com>
Co-authored-by: March Rogers <marchr@microsoft.com>
Co-authored-by: Mike Harsh <mharsh@microsoft.com>
Co-authored-by: Nachum Bundak <Nachum.Bundak@microsoft.com>
Co-authored-by: Oliver Jones <ojones@microsoft.com>
Co-authored-by: Patrick Little <plittle@microsoft.com>

src/common/start_visible.cpp

@@ -0,0 +1,16 @@
+#include "pch.h"
+#include "start_visible.h"
+
+bool is_start_visible() {
+  static winrt::com_ptr<IAppVisibility> app_visibility;
+  if (!app_visibility) {
+    winrt::check_hresult(CoCreateInstance(CLSID_AppVisibility,
+                                          nullptr,
+                                          CLSCTX_INPROC_SERVER,
+                                          __uuidof(app_visibility),
+                                          app_visibility.put_void()));
+  }
+  BOOL visible;
+  auto result = app_visibility->IsLauncherVisible(&visible);
+  return SUCCEEDED(result) && visible;
+}