Skrey index feature

[joaoferreira-skrey]

Update products in doofinder using api rest requests when they are updated in magento backoffice or using magento web api, and when magento index update mode is on save or on schedule

[Khermess]

Hello @joaoferreira-skrey, I'm taking this project right now as others are on vacation, I'm going to merge it and test it, but could you please tell me what this pr exactly does?

Thanks in advance