* Settings are Off, Point and Volume
* The default quality is Point, which is a downgrade in quality from the previous effective default of Volume, but has much less overhead (ILC update time reduced by 4x). Components now have to opt-in to higher quality. This also fixes the issue where ILC allocations would fail after 1728 movable components.
* Fixed Point sample location to be the snapped center of the bounds, previously it was the Min which was often below the ground
* Opaque materials can now apply the Point cached lighting from shader constants
[CL 2258313 by Daniel Wright in Main branch]