Remove history_item and layout from pch.

Also move some code to separate modules.
Also create history item views by Window::Controller.

Telegram/SourceFiles/info/info_wrap_widget.h

@@ -11,6 +11,10 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include <rpl/event_stream.h>
 #include "window/section_widget.h"
 
+namespace Storage {
+enum class SharedMediaType : char;
+} // namespace Storage
+
 namespace Ui {
 class SettingsSlider;
 class FadeShadow;