* add python-magic
* first pass on filetype detection
* tests for filetype detection
* more tests for file detection
* added tests for error conditions
* install libmagic dev in github
* libmagic install instructions
* pattern for checking email files
* support reading .eml in rb mode
* add auto partition function
* auto tests for emal
* auto tests for docx
* added tests for html
* add pdf and html tests
* linting, linting, linting
* added docs for auto partitioning
* update readme with generic partition brick
* bumped version
* added test for bad type
* detect .docx files from application/octet-stream
* linting, linting, linting
* identify xlsx from octet stream
* install poppler in ci
* fix mocks; test for unknown type
* install poppler utils
* install in one line
* only poppler-utils
* file extension logic from application/octet-stream
* install local inference for ci
* install detectron2
* removing unused dockerfile
