Implement S3Presigner class

## Describe the Feature
A class for presigning S3 requests of various types

### Is your Feature Request related to a problem?
The Java SDK provides this functionality but it has not been replicated in the .NET SDK.
https://sdk.amazonaws.com/java/api/latest/software/amazon/awssdk/services/s3/presigner/S3Presigner.html

I would like to provide proxied functionality for our S3 bucket, utilizing credentials other than IAM. For this I need to generate presigned S3 URLs.

## Proposed Solution
Port the Java SDK implementation to .NET

## Additional Context

### Environment

* [ ] :wave: I may be able to implement this feature request
* [ ] :warning: This feature might incur a breaking change

---

This is a :rocket: Feature Request

Start with the linked Java S3Presigner API and compare its supported presigning behavior with the .NET SDK. Done means providing an S3Presigner class that can presign S3 requests of various types for proxied bucket access using non-IAM credentials.

Written by the indexing model from the issue text.