[DONT MERGE] WP 4ds loader

[zpl-zak]

No description provided.

[drummyfish]

Better use typedefs instead of namespace for each enum?

[Romop5]

Isn't this namespace version equal to enum class ? See http://en.cppreference.com/w/cpp/language/enum

[drummyfish]

Might be, anyway either use the enum class or typedef, that way we won't have a billion namespaces in doxygen docs etc. - I'd go for C++14 features only if there's a clear benefit though, i.e. typedefs might achieve the same while keeping the module working with lower C++ versions.

[drummyfish]

I suppose this is only a first draft, but just to be clear: the code you added should be moved to format_parsers.hpp to a subclass of the format class. That class should then be used in osg_loaders.hpp to get the model data and construct the OSG node.