466af92f7a
"Light" already has multiple contexts, but some were missing: - In general, "Light" refers to a Blender Light object. In many cases, this comes from an `id_type` enum, already using the ID context. Use it also for properties that were missing that context. - In the context of render passes, "Light" is the actual illumination factor, not the light emitor. A new "Render Layer" translation context is introduced for this purpose as no existing ones are both specific and explicit enough. Issue reported by Hoang Duy Tran.