`ociodisplay` inconsistency between tetrahedral interpolation and linear sampling

[num3ric]

With tetrahedral interpolation, the gpu processor generates manual interpolation code in Lut3DOpGPU.cpp and specifies the use of GL_NEAREST.

However, the SetTextureParameters function used by ociodisplay still sets the texture to GL_LINEAR in this case. Shouldn't this if-statement also set the texture to GL_NEAREST if the incoming interpolation is tetrahedral as well?