Feature request: Support distinct option for de-duplication

[m-vdb]

Description

Documentation: https://www.algolia.com/doc/guides/ranking/distinct/#distinct-for-de-duplication

I am hitting the 10kb limit for records and I need to be able to support de-duplication. Here is my use case:

• I have one model that contains a list of locations
• for some models, this list contains a lot of locations (some thousands)
• when indexing my model, I want to push 1 record for each location in the list: this will tremendously decrease record size while at the same time enhance the search experience

Are you willing to accept PRs for this feature? I can draft a spec here and get on with it 💪 Cheers!