Shrimp Shader Generator FLTK2 GUI (SVN)

ENH: added missing Atuhors field in the scene; shader properties are exported as comments in the RIB file

ENH: type_extension serialization

ENH: array support in the 'Edit Input' dialog and shader_block structure

NEW: array's user interface in the 'Add Input' dialog

ENH: split the scene_view::handle() function

PRMan doesn't accepts Ol global variable (light opacity). Add workaround so that generated light shaders don't output Ol.

Fixed typo in Stanford Buddha container scene (Attribute).
Fixed missing control points in spline() in the lichen example scene.

Fixed camera position in Stanford Dragon container RIB.

Fixed remaining RIB scenes. Added updated Stanford Dragon scene.

Added Clipping to the Shrimp generated RIB, and fixed Quantization. Added archives/ directory with preview objects (read in main scene via ReadArchive). Tweaked main "container" scenes. RIB archives (Stanford Dragon, Stanford Buddha, Stanford Bunny, and background box) by Uros Simic.