Merge pull request #172 from Unity-Technologies/texture-randomizer-hdrp-fix

Make TextureRandomizer compatible with HDRP

com.unity.perception/CHANGELOG.md

 
 Semantic Segmentation Labeler now produces output in the proper form for distributed data generation on Unity Simulation by placing output in randomized directory names
 
+Texture Randomizer is now compatible with HDRP
+
+
 ## [0.6.0-preview.1] - 2020-12-03
 
 ### Added

com.unity.perception/Runtime/Randomization/Randomizers/RandomizerExamples/Randomizers/TextureRandomizer.cs

     [AddRandomizerMenu("Perception/Texture Randomizer")]
     public class TextureRandomizer : Randomizer
     {
+#if HDRP_PRESENT
+        static readonly int k_BaseTexture = Shader.PropertyToID("_BaseColorMap");
+#else
+#endif
 
         /// <summary>
         /// The list of textures to sample and apply to tagged objects