chore: import upstream snapshot with attribution

doc/devdocs/modules/launcher/plugins/onenote.md

@@ -0,0 +1,38 @@
+# OneNote Plugin
+The OneNote plugin searches your locally synced OneNote notebooks based on the user query.
+
+![Image of OneNote plugin](/doc/images/launcher/plugins/onenote.png)
+
+The code itself is very simple, basically just a call into OneNote interop via the https://github.com/scipbe/ScipBe-Common-Office library.
+
+```csharp
+var pages = OneNoteProvider.FindPages(query.Search);
+```
+
+The query results will be cached for 1 day, and if cached results are found they'll be returned in the initial `Query()` call; otherwise, OneNote itself will be queried in the `delayedExecution:true` overload.
+
+If the user actions on a result, it'll open it in the OneNote app, and restore and/or focus the app as well if necessary.
+
+```csharp
+if (PInvoke.IsIconic(handle))
+{
+    PInvoke.ShowWindow(handle, SHOW_WINDOW_CMD.SW_RESTORE);
+}
+
+PInvoke.SetForegroundWindow(handle);
+```
+
+The plugin attempts to call the library in the constructor, and if it fails with a COMException then it'll note that OneNote isn't available and not attempt to query it again.
+
+```csharp
+try
+{
+    _ = OneNoteProvider.PageItems.Any();
+    _oneNoteInstalled = true;
+}
+catch (COMException)
+{
+    // OneNote isn't installed, plugin won't do anything.
+    _oneNoteInstalled = false;
+}
+```