Unsupported array parameter error when reading RectLights

[sirpalee]

Describe the bug When opening an usda file in Hydra, with a rect light and a filters parameter, we get an error that aborts rendering.

To Reproduce Steps to reproduce the behavior:

1. Open the usda file in internal.zip.
2. The render delegate triggers an error message: Unsupported array parameter /aiAreaLight1/aiAreaLightShape1.filters

Expected behavior There should be no error message and the light converter should not try to use HdArnoldSetParameter to convert the filters parameter on a light. We have other code paths for that.

[autodesk-oss-arnold-bot[bot]]

Issue synced internally to ARNOLD-13285