Add signed upload to azure and s3

[Polandia94]

Add signed upload to azure and s3

Description

Add upload methods on get_object_cdn on azure blob storage and s3, using the same parameters.

Related: https://github.com/apache/libcloud/issues/1458

Status

• done, ready for review

Checklist (tick everything that applies)

• [x] Code linting (required, can be done after the PR checks)
• [ ] Documentation
• [x] Tests
• [ ] ICLA (required for bigger changes)