Feature request: add helper function to decode base64 encoded strings

[dreamorosi]

Use case

Across the project we decode base64 encoded strings in two places: the Parameters utility when fetching configurations from AppConfig, and the upcoming JMESPath utility when using the powertools_base64() custom function.

To avoid code duplication we should extract this functionality in the commons package so that it can be reused by both consumers.

Solution/User Experience

The utility should have a small footprint and an isolated export so that it can be tree shaken and removed from bundle when not used.

Alternative solutions

No response

Acknowledgment

• This feature request meets Powertools for AWS Lambda (TypeScript) Tenets
• Should this be considered in other Powertools for AWS Lambda languages? i.e. Python, Java, and .NET

Future readers

Please react with 👍 and your use case to help us understand customer demand.

[github-actions]

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[github-actions]

This is now released under v2.0.3 version!