Experimental use of jHitPolygon for all polygons in Shipyard mesh

Hit shape matches appearance better than simplified hitboxes (in fact,
hit shape is defined as the same way as the visual model), but it
would cost more calculation time as number of polygons for visualization
is much higher than hitboxes.
vastspace: Allow standing on hooked Shipyard surface

Space Soldiers wear electromagnetic shoes to attach their feet onto
metallic surface in order to walk on it.  Hooking on a surface make
one to attach on the hooked surface.  Shooting another surface with
the hook or walking out of the face detaches from surface.

When attached, the player can control a Soldier like on the Earth's
surface, which means the mouse controls the view in lathe-like
manner.

This feature is so complex that only Shipyard support it for Soldier,
but it looks like it's a good starting point.

Also adjusted Soldier's camera view position which has not matched with
the model's head.