RO-Crate Upload Button (C#, 5S-TES)

[douglowe]

This should enable a user to:

• Upload an RO-Crate containing a 5S-TES message.
• The RO-Crate metadata is sent to the Crate Validation Service to be validated
• After validation the 5S-TES message is passed to the wizard for submission

We can discard the rest of the RO-Crate for now (if this isn't obvious and easy to work out where to store it).

[douglowe]

These are the details for the metadata API: https://github.com/eScienceLab/Cratey-Validator?tab=readme-ov-file#validate-ro-crate-metadata

[douglowe]

Once the prototyping work is done in https://github.com/eScienceLab/HDR-RO-Crate-Toolkits/issues/2 then this can be developed.