Kits: Allow for mutable KitInformation

Mutable KitInformation are those that are supposed to be editable in more
user-accessible places (e.g. like the Mini Target Selector or similar)
than the normal kit options page.

The functionality to display these settings is not part of this patch.

Change-Id: I13446c49abf89eaf739a60dbcd01c97e2144de45
Reviewed-by: Tobias Hunger <tobias.hunger@digia.com>

src/plugins/projectexplorer/kitconfigwidget.cpp

@@ -43,4 +43,14 @@ Core::Id KitConfigWidget::kitInformationId() const
     return m_kitInformation->id();
 }
 
+bool KitConfigWidget::isMutable() const
+{
+    return m_kit->isMutable(m_kitInformation->id());
+}
+
+void KitConfigWidget::setMutable(bool b)
+{
+    m_kit->setMutable(m_kitInformation->id(), b);
+}
+
 } // namespace ProjectExplorer