Add documentation for `sometimes` rule, and fix nested sometimes bug#437

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paulhbarker wants to merge 2 commits intomikeerickson:masterfrom paulhbarker:sometimes-rule-fix

+86-16

Commits on Sep 8, 2021

update documentation for sometimes rule, fix bug where nested properties were not running any validation with the inclusion of the sometimes rule
paulhbarker
committed
update jsdoc for _suppliedWithData()
paulhbarker
committed