ArnoldFilterMap : Rename to ArnoldCameraShaders and add uvRemap #3058
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I was originally planning on adding an ArnoldUVRemap node to allow Arnold's persp_camera.uv_remap shader to be specified in Gaffer. But it occurred to me that the name is pretty unobvious, and that ArnoldFilterMap wasn't much better in that respect. This repurposes the original ArnoldUVRemap node as an ArnoldCameraShaders node that can specify both filtermap and uv_remap shaders. If this approach seems preferable, then we should get this merged before we 0.53.2.0 (ArnoldUVRemap hasn't been released yet, so it wouldn't be a breaking change).