added Deep Lake as a datastore

[davidbuniat]

Adding Deep Lake as a data store. For more information please see below.

1. Here is whitepaper and academic paper for Deep Lake
2. Here is a set of additional resources available for review: Deep Lake, Getting Started and Tutorials

Notes

Though Deep Lake is a data lake for deep learning applications, it may be used as an alternative embedding store, though main purpose is to store multi-modal datasets.

[davidbuniat]

hey @isafulf would appreciate review! Let me know, if we would like to hop on a call to go over the PR.