Initial commit
initial vizkit3d plugin code
underwater simulator. create a plugin for vizkit to simulate underwater environment. Integrate with osg_ocean using defaults parameters
renamed into vizkit3d_ocean
use the pkg-config file provided by Rock's patched osgOcean
use osgDB to find the ressource files
don't touch the global vizkit state in a plugin

This code was resetting the camera to a fixed position, which would
lead to very strange behaviour if loaded in a running visualization

In this case, setting the camera should be done globally in the ruby script
remove unused dead code
add missing dependency
cleanup autoproj-level dependencies
install sky textures
remove the islands

It really makes little sense in a plugin whose job is to represent
the ocean (great as an example for osgOcean though). Moreover, the
models cost upwards of 20MB, so that's a strong argument for removing
it.
viz: rename the Vizkit3dOcean class to Ocean