EPIC: Add code examples for base Amazon Bedrock Runtime API Actions

[fbouteruche]

Amazon Bedrock is generally available since September 28th, 2023. We've received feedback from AWS Communities that they are looking for code examples to get started with AWS SDKs and Amazon Bedrock.

This issue is for tracking the addition of code examples showing how to leverage the following Amazon Bedrock API Actions:

• ListFoundationModels https://docs.aws.amazon.com/bedrock/latest/APIReference/API_ListFoundationModels.html
• InvokeModel https://docs.aws.amazon.com/bedrock/latest/APIReference/API_runtime_InvokeModel.html
• InvokeModelWithResponseStream https://docs.aws.amazon.com/bedrock/latest/APIReference/API_runtime_InvokeModelWithResponseStream.html

The code examples will be provided for the following SDKs:

• [x] #5540
• [x] #5541
• [x] #5539
• [ ] #5542

If possible, code examples will be provided for the following SDKs:

• [ ] #5544
• [ ] TypeScript
• [x] #5640

[DennisTraub]

I've added Issue #5640 (Add Go code examples for base Amazon Bedrock Runtime API Actions) and will be working on the PR.