Add an option to qmake to generate Windows CE-compatible Visual Studio project

At the moment, running "qmake -tp vc" creates a Visual Studio project, but a lot of include and configuration setting changes are necessary for the compiler to compile for Windows CE. (see http://bugreports.qt.nokia.com/browse/QTBUG-8310)

Perhaps, add an option to qmake that could create a project compatible with installed shadowed libraries of Qt, just like what the File->New Qt Windows CE project provided by the Qt Visual Studio integration does.