Fixity checking for Self Deposit [placeholder]

[eporter23]

While working on preservation events we learned that Fixity Checking is not supported in Hyrax 5. While we can perform fixity checking in AWS directly, we may also need to customize both processes to account for the complexities of OCFL generated by Hyrax.

Also, the Hyrax default checksum field is not supported as of 6/5/24.