Changes to Import Rules

the payload/rules/items/conditions/items request property type changed from object to no type

removed the request property payload/rules/items/conditions/items/field

removed the request property payload/rules/items/conditions/items/op

removed the request property payload/rules/items/conditions/items/value

added RuleConditionGroup RuleCondition to the payload/rules/items/conditions/items request property anyOf list