Save and load SOK model embeddings

[wenjing-nv]

Fixes # (issue)

Goals ⚽

Provide an interfact for SOKEmbedding load/dump and a sample code for SOKEmbedding model load/dump

Implementation Details 🚧

Testing Details 🔍

This ticket is about saving and loading a model trained with SOK. this might take 1 or two releases.

[github-actions]

Documentation preview

https://nvidia-merlin.github.io/models/review/pr-951

[rnyak]

related PR: #863

[rnyak]

@WonderingWJ is this the duplicate of #863? shall we remove this one or keep both, bcs both are required? could you please provide some info? thanks.

[wenjing-nv]

@rnyak This one is not a duplication of #863. This one targets to solve the load/dump for SOK. That one is to integrate SOK into merlin models

[rnyak]

@WonderingWJ is this still WIP or this is ready? could you update your branch? thanks.

[rnyak]

@WonderingWJ any update on that PR? can we close it?

[edknv]

@WonderingWJ Is this PR still relevant? If so, we will need to rebase this PR.

[wenjing-nv]

@WonderingWJ Is this PR still relevant? If so, we will need to rebase this PR.

The dump/load method of SOK is under development. After SOK load/dump is done, we can discuss this MR. Currently, we don't need to rebase. Thank you!

[wenjing-nv]

@WonderingWJ any update on that PR? can we close it?

Sorry for late response. The SOK load/dump is under development. Currently, we can keep this MR and discuss it after SOK load/dump is done.