Sites and lists: 37 API change passages

Added the validation property to columnDefinition resource Added the contentApprovalStatus property to columnDefinition resource Added the hyperlinkOrPicture property to columnDefinition resource Added the isDeletable property to columnDefinition resource Added the isReorderable property to columnDefinition resource Added the isSealed property to columnDefinition resource Added the propagateChanges property to columnDefinition resource Added the term property to columnDefinition resource Added the thumbnail property to columnDefinition resource Added the type property to columnDefinition resource Added the sourceColumn relationship to columnDefinition resource Added the associatedHubsUrls property to contentType resource Added the documentSet property to contentType resource Added the documentTemplate property to contentType resource Added the isBuiltIn property to contentType resource Added the propagateChanges property to contentType resource Added the base relationship to contentType resource Added the baseTypes relationship to contentType resource Added the columnPositions relationship to contentType resource Added the columns relationship to contentType resource Added the externalColumns relationship to site resource Added the columnValidation resource type Added the contentApprovalStatusColumn resource type Added the displayNameLocalization resource type Added the documentSet resource type Added the documentSetContent resource type Added the hyperlinkOrPictureColumn resource type Added the termColumn resource type Added the thumbnailColumn resource type Added the columnTypes enumeration type Added the addCopy method to the contentType resource Added the associateWithHubSites method to the contentType resource Added the copyToDefaultContentLocation method to the contentType resource Added the publish method to the contentType resource Added the unpublish method to the contentType resource Added the getApplicableContentTypesForList method to the site resource Added the isPublished method to the contentType resource