Add files ported from research/qt3d

Fill repo with some of the files from the research/qt3d project.  At
present the new project builds under MacOSX.  To-dos include getting it
building under linux, windows, harmattan and maemo/meego; updating the
documentation to reflect the new QtQuick focus; and fixing the issues
with private headers.
Update to quick3d product focus.

Mostly doco changes, add new logo.  Switch role of the Qt3D C++ API to
being a way to extend the QML3D bindings.  De-emphasise the portability
and OpenGL aspects of C++ side.  Also remove stereo stuff as far as
possible.
Make quick3d build without private headers.

It compiles and basket runs on MacOSX - almost certainly most other apps
are broken on most other platforms.  Got to start somewhere.
Capitlization fix for running qmake on linux
Initial add of debian packaging.

This was from an earlier effort against qt3d master, so will need some
checking/tweaking for the quick3d repo.
Build under windows.

The cubehouse runs, but still needs work for the declarative stuff.
Merge branch 'master' of git@scm.dev.nokia.troll.no:qt/quick3d
Linux fixes for new repo.

Now builds on linux, albeit with lots of warnings.
Merge branch 'master' of scm.dev.nokia.troll.no:qt/quick3d

Conflicts:
	src/private/qfactoryloader_p.h
Fix image texture loading bug.
Merge branch 'master' of git@scm.dev.nokia.troll.no:qt/quick3d
Add lunar lander game example
Remove "generated" to shut up git hooks
Add-texture-coordinates-to-quad.obj
Monster refactor commit.
Compile after refactor of examples/demos.
QTBUG-18447 - more fixing of examples.

They all now compile and run at least on MacOSX.  There are some known
issues and these have all been entered as bug reports.

As far as I can tell all required resources are now being found and the
apps are all deploying correctly.  This still needs to be verified on
the other platforms.
Remove scenegraph / qml2 support.

QML2 will not be available in public packages for a while so no point in
having it in here and causing support headaches.
Merge branch 'master' of git@scm.dev.nokia.troll.no:qt/quick3d
QtLander beta