Improvements in repository-s3 plugin

[Bukhtawar]

Is your feature request related to a problem? Please describe.

1. No support for using precomputed checksums
2. High throughput transfer aren't supported

Describe the solution you'd like There are few features missing in repository-s3 plugin

1. Support for passing computed checksum and additional checksum algorithm
2. Support for high throughput transfer using S3 Transfer Manager Describe alternatives you've considered A clear and concise description of any alternative solutions or features you've considered.

Additional context Add any other context or screenshots about the feature request here.