[S2] Download files from AWS Omics Store from UI with JS SDK

[SilinPavel]

Similarly to download function for S3 buckets, it should be possible to download AWS Omics files:

• Specific source or index file of an AWS Omics readSet/reference
• The whole AWS Omics readSet/reference (all sources and index (in any) one by one)

Implementation through:

• https://docs.aws.amazon.com/AWSJavaScriptSDK/latest/AWS/Omics.html