New E5 Models in Registry

[OwenPendrighElliott]

• What kind of change does this PR introduce? (Bug fix, feature, docs update, ...)
  Feature - new E5 Models

• What is the current behavior? (You can also link to an open issue here)
  E5 V2 and multilingual E5 models are not in the registry

• What is the new behavior (if this is a feature change)?
  E5 V2 and multilingual E5 models are now in the registry

• Does this PR introduce a breaking change? (What changes might users need to make in their application due to this PR?)
  No

• Have unit tests been run against this PR? (Has there also been any additional testing?)
  All unit tests pass. Indexes created with the new models work as expected.

• Related documentation changes (link commit/PR here)
  https://github.com/marqo-ai/marqodocs/pull/111

• Please check if the PR fulfills these requirements

• The commit message follows our guidelines
• Tests for the changes have been added (for bug fixes/features)
• Docs have been added / updated (for bug fixes / features)

[pandu-k]

Thanks Li! Do we need a test ensuring that we can create a new index with one of the new model types, as expected, and then add a doc and search?

[OwenPendrighElliott]

@pandu-k is there anything pending on this?

[pandu-k]

Hi Owen, thanks for this!

• Have some of these models been manually end-to-end (as part of a Marqo index) tested for performance (recall + latency). Eyeballing is fine for now at this stage.
• Do we need a test ensuring that we can create a new index with one of the new model types, as expected, and then add a doc and search? @wanliAlex do you have any examples of these types of tests?
• It would be good for @wanliAlex to also have a review

[OwenPendrighElliott]

Hi Owen, thanks for this!

• Have some of these models been manually end-to-end (as part of a Marqo index) tested for performance (recall + latency). Eyeballing is fine for now at this stage.

I tested all of these models locally with a dev build of Marqo before I raised this PR. I haven't benchmarked them though our simple wiki demo is using e5-base-v2 https://demo.marqo.ai/?q=what+is+isaac+newton+known+for&index=simplewiki