Doc: Add "\inmodule QtCreator" to \class and \namespace docs

To get rid of QDoc warnings.

Change-Id: Idd39b7ae4327798c376f424c94d6617bcaee2258
Reviewed-by: hjk <hjk@qt.io>

src/libs/utils/filepath.cpp

@@ -37,7 +37,9 @@ static DeviceFileHooks s_deviceHooks;
 inline bool isWindowsDriveLetter(QChar ch);
 
 
-/*! \class Utils::FilePath
+/*!
+    \class Utils::FilePath
+    \inmodule QtCreator
 
     \brief The FilePath class is an abstraction for handles to objects
     in a (possibly remote) file system, similar to a URL or, in the local