[WIP] New ebi submit [WIP]

Almost there, but I thought I'd get this in now so that people can begin reviewing, it's kind of big.

Needs:
- [ ] Logging
- [ ] Test code
- [ ] Script file (this is the library code)
- [ ] Final step that calls ASCP on the XML files generated
`split_helper` should be moved into here otherwise we have a circular dependency once the cmd line click'd interface imports `EBISubmission`