[Feature] Add Bedrock SDK Integration

[akshaydeo]

Discord Thread Context

Thread: I currently use the Vercel AI SDK to hit my google vertex provider endpoint. While using the baseURL
Link: https://discord.com/channels/1371790330269007932/1430289037998166226
Created by: akshay_deo (361806850561146880)

Recent Thread Messages

pratham_maxim_91868: Hey <@280020704781533184> so we call these SDK base endpoints "integrations", and you can read more about it here https://docs.getbifrost.ai/integrations/what-is-an-integration
pratham_maxim_91868: currently we dont have a specific /vertex endpoint but if createVertex obj is openai compatible then you can use /openai or /gemini for gemini compatibility. And for bedrock, again we dont sup...

Discord Thread: https://discord.com/channels/1371790330269007932/1430289037998166226

Problem -

There is no /bedrock endpoint in bifrost integrations for full compatibility with bedrock SDK.

References -

https://docs.getbifrost.ai/integrations/what-is-an-integration

[yashagw]

Can you assign it to me?

[yashagw]

PR: #841