rhi: Enable the qrhi autotest on WinRT

There is no onscreen support for WinRT in the D3D11 backend yet.
However, offscreen operations (rendering into a texture) should work.
One catch is that there is no D3DCompile available for deployed WinRT
apps. So ship the intermediate format (DXBC output from fxc) in the
.qsb files.

Change-Id: Ic0aba4b817c27d13dcf3af41bf7612d799382655
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>

tests/auto/gui/rhi/qrhi/data/compile.bat

@@ -0,0 +1,44 @@
+:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::
+:: Copyright (C) 2019 The Qt Company Ltd.
+:: Contact: https://www.qt.io/licensing/
+::
+:: This file is part of the QtQuick module of the Qt Toolkit.
+::
+:: $QT_BEGIN_LICENSE:LGPL$
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+:: $QT_END_LICENSE$
+::
+:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+
+:: Note the -c argument: we do not want runtime HLSL compilation since that is
+:: not an option on UWP (WinRT). This means that running qsb must happen on Windows.
+
+qsb --glsl "150,120,100 es" --hlsl 50 -c --msl 12 -o simple.vert.qsb simple.vert
+qsb --glsl "150,120,100 es" --hlsl 50 -c --msl 12 -o simple.frag.qsb simple.frag