common: refactor common library pt2 (#8588)

- remove common lib
- split settings, remove common-md
- move ipc interop/kb_layout to interop
- rename core -> settings, settings -> old_settings
- os-detect header-only; interop -> PowerToysInterop
- split notifications, move single-use headers where they're used
- winstore lib
- rename com utils
- rename Updating and Telemetry projects
- rename core -> settings-ui and remove examples folder
- rename settings-ui folder + consisent common/version include

src/common/utils/window.h

@@ -0,0 +1,59 @@
+#pragma once
+
+#define WIN32_LEAN_AND_MEAN
+#include <Windows.h>
+#include <dwmapi.h>
+
+#include <array>
+#include <optional>
+
+#pragma comment(lib, "dwmapi.lib")
+
+// Initializes and runs windows message loop
+inline int run_message_loop(const bool until_idle = false, const std::optional<uint32_t> timeout_seconds = {})
+{
+    MSG msg{};
+    bool stop = false;
+    UINT_PTR timerId = 0;
+    if (timeout_seconds.has_value())
+    {
+        timerId = SetTimer(nullptr, 0, *timeout_seconds * 1000, nullptr);
+    }
+
+    while (!stop && GetMessageW(&msg, nullptr, 0, 0))
+    {
+        TranslateMessage(&msg);
+        DispatchMessageW(&msg);
+        stop = until_idle && !PeekMessageW(&msg, nullptr, 0, 0, PM_NOREMOVE);
+        stop = stop || (msg.message == WM_TIMER && msg.wParam == timerId);
+    }
+    if (timeout_seconds.has_value())
+    {
+        KillTimer(nullptr, timerId);
+    }
+    return static_cast<int>(msg.wParam);
+}
+
+// Check if window is part of the shell or the taskbar.
+inline bool is_system_window(HWND hwnd, const char* class_name)
+{
+    // We compare the HWND against HWND of the desktop and shell windows,
+    // we also filter out some window class names know to belong to the taskbar.
+    constexpr std::array system_classes = { "SysListView32", "WorkerW", "Shell_TrayWnd", "Shell_SecondaryTrayWnd", "Progman" };
+    const std::array system_hwnds = { GetDesktopWindow(), GetShellWindow() };
+    for (auto system_hwnd : system_hwnds)
+    {
+        if (hwnd == system_hwnd)
+        {
+            return true;
+        }
+    }
+    for (const auto system_class : system_classes)
+    {
+        if (!strcmp(system_class, class_name))
+        {
+            return true;
+        }
+    }
+    return false;
+}