Resolves any property form to concrete key -> value entries. Inline bags
return their entries unchanged; indexed bags are joined against the scene's
propertyIndex; column bags additionally read their value row from the
values reader opened over the scene's property column file. Referential
errors throw — run validateScene first when the scene is untrusted.
Resolves any property form to concrete
key -> valueentries. Inline bags return their entries unchanged; indexed bags are joined against the scene'spropertyIndex; column bags additionally read their value row from thevaluesreader opened over the scene's property column file. Referential errors throw — runvalidateScenefirst when the scene is untrusted.