Native bindings to the NV_conservative_raster_dilate extension.

This extension extends the conservative rasterization funtionality provided by NV_conservative_raster. It provides a new control to generate an "over-conservative" rasterization by dilating primitives prior to rasterization.

When using conservative raster to bin geometry, this extension provides a programmable overlap region between adjacent primitives. Regular rasterization bins triangles with a shared edge uniquely into pixels. Conservative raster has a one-pixel overlap along the shared edge. Using a half-pixel raster dilation, this overlap region increases to two pixels.

Requires NV_conservative_raster.