feat: add Bedrock provider integration with embedding functionality

[jaummm1]

The Bedrock embedding models have been added.

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Name	Status	Preview	Comments	Updated (UTC)
legacy-llama-index-ts-docs	❌ Failed (Inspect)			Nov 21, 2024 1:36pm

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[himself65]

LGTM but I think we have bedrock in community package, let me see if these are conflicts