Update existing DataObject JSON

[dehays]

include URL values for all files supporting downloadability

[dehays]

None of the JSON for DataObjects in nmdc-metadata/blob/master/metadata-translation/src/data/nmdc_database.json.zip include the URL property necessary for downloading. All fastq, raw EMSL, qc, assembly files that are intended for download need to be wrapped in DataObjects that include the URL property

[cmungall]

url is already present in DataObject https://microbiomedata.github.io/nmdc-metadata/DataObject/ - can we close this?

[dehays]

@cmungall This issue is about instances of DataObject that have already been created and need to be updated based on information regarding file location. As you say, URL is present in the schema - added this when I closed #173

[dehays]

@scanon You are the person with the information necessary to do this update as you are the person who is setting the locations of files on CFS. Is it on your radar to do this for the existing files - raw read fastq on down? If needed, we can deal with the JSON object updates if you can provide the file/DataObject ID --> URL information.