mime type in parser matching
when a mainfile upload and being matched, magic package will check the mime type and match the parser.
For the following json (from nrel_htem lib), magic library not taking it as application/json
but plain text.
.volumes/fs/staging/YI/YI95vjmrT06GRyKah47ERA/raw/nrel.sample.json
----------------------mime_type----------------------
text/plain