Metadata
Adds metadata submission script:
- Same idea as AM's Perl scripts, but in Python and designed to be more generic with some extra functionality
- Takes a config file, command line args and sample sheet from encryption step
- Generates XMLs for each object type required
- Can specify --nbatches to split files into separate XMLs. Files can then be uploaded one batch at a time to avoid running out of ega-box space
- Unit tests in metadata/tests