Allow variable lookups in config dict keys #777
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Sometimes, dict keys need to be generated via lookup, such as for federated IAM policies, where the conditions need to specify outputs of other stacks. Stacker supported lookup substitution inside dictionary values, and this change extends that behavior to dictionary keys.
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Sometimes, dict keys need to be generated via lookup, such as for federated IAM policies, where the conditions need to specify outputs of other stacks.
Stacker supported lookup substitution inside dictionary values, and this change extends that behavior to dictionary keys.