Nested-multipart-parser

What's Changed
* 8 feat empty dict/list by remigermain in https://github.com/remigermain/nested-multipart-parser/pull/9


**Full Changelog**: https://github.com/remigermain/nested-multipart-parser/compare/v1.4.1...1.5.0

- feat: add options to convert output parser to dict (7 thx [lidyum](https://github.com/lidyum) )

- `fix`: nested files 6 ( thanks [lidyum](https://github.com/lidyum) )

- change `mixed` separator to `mixed-dot`
- add `mxied` separator (same as `mixed-dot` but without dot when object follow a list)

- added `mixed` separator 1

features:
- add options for parser
options: "separator", "raise_duplicate", "assign_duplicate"

fix:
- django restframework with querydict