feat(S3): implements suspend and resume features for multipart upload tasks

[brennanMKE]

Issue #, if available:

#4167

Description of changes:

Adds new public API for suspending and resuming multipart upload tasks. This behavior has not been directly supported before. The multipart upload process involves several states as well as integration with the URLSession delegate functions.

See #3668.

Check points:

• [ ] Added new tests to cover change, if needed
• [ ] All unit tests pass
• [ ] All integration tests pass
• [ ] Updated CHANGELOG.md
• [ ] Documentation update for the change if required
• [ ] PR title conforms to conventional commit style

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[brennanMKE]

This app can be used to try out this new feature. Once setup.sh is run make sure to change to a branch which has this feature. It will not be on main until this PR is approved and merged.

Dangle.zip