Doc: Pull information about C++ sidebar views into separate file

To make docs more modular.

Change-Id: I58095b2b4e9e216808cc4d37b3494480cbf1787c
Reviewed-by: Eike Ziller <eike.ziller@qt.io>

doc/src/cpp/creator-sidebar-cpp-views.qdocinc

@@ -0,0 +1,78 @@
+/****************************************************************************
+**
+** Copyright (C) 2018 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the Qt Creator documentation.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Free Documentation License Usage
+** Alternatively, this file may be used under the terms of the GNU Free
+** Documentation License version 1.3 as published by the Free Software
+** Foundation and appearing in the file included in the packaging of
+** this file. Please review the following information to ensure
+** the GNU Free Documentation License version 1.3 requirements
+** will be met: https://www.gnu.org/licenses/fdl-1.3.html.
+**
+****************************************************************************/
+
+/*!
+//! [cpp sidebar views]
+
+The following views display additional information about C++ code:
+
+    \list
+        \li \uicontrol {Class View} shows the class hierarchy of the currently
+            open projects.
+        \li \uicontrol Tests lists autotests and Qt Quick tests in the project.
+            For more information, see \l {Running Autotests}.
+        \li \uicontrol {Type Hierarchy} shows the base classes of a class.
+        \li \uicontrol {Include Hierarchy} shows which files are included in
+            the current file and which files include the current file.
+    \endlist
+
+//! [cpp sidebar views]
+
+
+//! [class view]
+
+    \section2 Viewing the Class Hierarchy
+
+    The \uicontrol {Class View} shows the class hierarchy of the currently
+    open projects. To organize the view by subprojects, click
+    \inlineimage qtcreator-show-subprojects.png
+    (\uicontrol {Show Subprojects}).
+
+    To visit all parts of a namespace, double-click on the namespace item
+    multiple times.
+
+//! [class view]
+
+
+//! [type hierarchy view]
+
+    \section2 Viewing Type Hierarchy
+
+    To view the base classes of a class, right-click the class and select
+    \uicontrol {Open Type Hierarchy}  or press \key {Ctrl+Shift+T}.
+
+//! [type hierarchy view]
+
+
+//! [include hierarchy view]
+
+    \section2 Viewing Include Hierarchy
+
+    To view which files are included in the current file and which files include
+    the current file, right-click in the editor and select
+    \uicontrol {Open Include Hierarchy} or press \key {Ctrl+Shift+I}.
+
+//! [include hierarchy view]
+*/