[#79603688] Improve GridView performance: Block widget signals in programmatic sets.  Allow model update only on a different value.
[#79603688] RenderingColorWidget: Allow model update only on a different value.
Merge remote-tracking branch 'origin/develop' into 79603688¬_GridViewPerformanceImprovement
Merge pull request #1227 from NREL/79603688¬_GridViewPerformanceImprovement

79603688¬ grid view performance improvement