ZEVA - ICBC file processing - error 13

[tim738745]

Writing the ICBC file to the backend's filesystem fails; appears to be a directory permission issue. Something associated with the build of the backend image may have changed.

This should be fixed by not writing the file to the filesystem; we can read it directly from the response object returned from calling get_object (https://min.io/docs/minio/linux/developers/python/API.html#get-object-bucket-name-object-name-offset-0-length-0-request-headers-none-ssec-none-version-id-none-extra-query-params-none)

[shayjeff]

I was able to upload an ICBC file without any issues.