add a method or property to get the 's3://bucket/key' style url from the Asset in aws-s3-assets

Use Case

In many places s3 assets are used in other constructs. In many projects I see:
people doing something like: s3://${myAsset.s3BucketName}/${myAsset.s3ObjectKey}

you could easily make small mistakes doing this, while it's such a common need.

Proposed Solution

add a property to Asset s3ObjectUrl which holds s3://${myAsset.s3BucketName}/${myAsset.s3ObjectKey}

Other

• 👋 I may be able to implement this feature request
• ⚠️ This feature might incur a breaking change

This is a 🚀 Feature Request