Move a few more headers that are included only in sfx2 to sfx2

Change-Id: I8bd81a45f5ef1b76fce1563b06e05a4eefcff0ec

sfx2/source/control/shell.cxx

@@ -42,7 +42,7 @@
 #include <sfx2/mnumgr.hxx>
 #include "statcach.hxx"
 #include <sfx2/msgpool.hxx>
-#include <sfx2/sidebar/ContextChangeBroadcaster.hxx>
+#include <sidebar/ContextChangeBroadcaster.hxx>
 
 #include <map>
 

sfx2/source/sidebar/ContextChangeBroadcaster.cxx

@@ -16,7 +16,7 @@
  *   except in compliance with the License. You may obtain a copy of
  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  */
-#include <sfx2/sidebar/ContextChangeBroadcaster.hxx>
+#include <sidebar/ContextChangeBroadcaster.hxx>
 #include <sfx2/sidebar/EnumContext.hxx>
 #include <com/sun/star/ui/ContextChangeEventObject.hpp>
 #include <com/sun/star/ui/ContextChangeEventMultiplexer.hpp>

sfx2/source/sidebar/PopupContainer.cxx

@@ -18,7 +18,7 @@
  */
 #include "precompiled_sfx2.hxx"
 
-#include <sfx2/sidebar/PopupContainer.hxx>
+#include <sidebar/PopupContainer.hxx>
 
 namespace sfx2 { namespace sidebar {