Libraries: Create top level directory for libraries.

Things were getting a little crowded in the project root, so this patch
moves the Lib*/ directories into Libraries/.

Libraries/LibCore/CTimer.cpp

@@ -0,0 +1,61 @@
+#include <LibCore/CTimer.h>
+
+CTimer::CTimer(CObject* parent)
+    : CObject(parent)
+{
+}
+
+CTimer::CTimer(int interval, Function<void()>&& timeout_handler, CObject* parent)
+    : CObject(parent)
+    , on_timeout(move(timeout_handler))
+{
+    start(interval);
+}
+
+CTimer::~CTimer()
+{
+}
+
+void CTimer::start()
+{
+    start(m_interval);
+}
+
+void CTimer::start(int interval)
+{
+    if (m_active)
+        return;
+    m_interval = interval;
+    start_timer(interval);
+    m_active = true;
+}
+
+void CTimer::restart(int interval)
+{
+    if (m_active)
+        stop();
+    start(interval);
+}
+
+void CTimer::stop()
+{
+    if (!m_active)
+        return;
+    stop_timer();
+    m_active = false;
+}
+
+void CTimer::timer_event(CTimerEvent&)
+{
+    if (m_single_shot)
+        stop();
+    else {
+        if (m_interval_dirty) {
+            stop();
+            start(m_interval);
+        }
+    }
+
+    if (on_timeout)
+        on_timeout();
+}