Curio pdptool upload-file

[ZenGround0]

Each call to the piece upload api is limited to taking ~100 MB. We need an improvement to the pdptool for ingesting large datasets into pdp. This should be sufficient to ingest ~1 TiB of proving parameter data.

• pdptool upload-file cli command
• take a file, chunk it
• upload to curio pdp api in a thread pool, handling errors
• prepare piece for all files to get cids out
• return rootcid:subroot,subroot format used by add-roots command