submission: create original format in converted directory when record finalised

[GraemeWatt]

The do_finalise function creates output files in the converted directory for each file format overwriting any previous files:

hepdata/hepdata/modules/records/utils/submission.py

Lines 767 to 768 in 614d556

	for file_format in ['yaml', 'csv', 'yoda', 'root']:
	convert_and_store.delay(hep_submission.inspire_id, file_format, force=True)

However, the original format is missing. This means that an original file could be created at an early stage before a record is finalised if a user clicks "Download All" then "YAML resource files". If the user does not subsequently click that button for the final version of a record (before finalisation), then after finalisation, the cached original file will still correspond to the early upload. I found this scenario had occurred today for a recent record. The fix is to replace the iteration over file formats in the code above with CFG_SUPPORTED_FORMATS (including original), then delete all original files from the converted directory after deployment so that they will be recreated.