**Summary**
Some partitioner test modules are placed in directories by themselves or
with one other test module. This unnecessarily obscures where to find
the test module corresponding to a partitiner.
Move partitioner test modules to mirror the directory structure of
`unstructured/partition`.
**Summary**
Closes#747
* Create CI Pipeline for running text, xml, email, and html doc tests
against the library installed without extras
* Create CI Pipeline for running each library extra against their
respective tests
* feat: add functionality to check if a string contains any emoji characters
* feat: add functionality to switch `html` text parser based on whether the `html` text contains emoji
* chore: add `beautifulsoup4` and `emoji` packages to `requirements/base.in` for general use
* chore: update changelog & version
* chore: update changelog & version
* chore: update dependencies
* test: update `EXPECTED_XLS_TEXT_LEN` for `test_auto_partition_xls_from_filename`
* chore: update changelog & version
* fix conflicts
* add tests and clean metadata_filename in partitions
* fix test_email and remove comments
* make tidy/check
* update changelog and version
* fix tests
* make tidy again
* first pass at partition_tsv
* working tests
* create constants for tests and debug `make test` failure
* make check and tidy
* undo changes for testing locally
* update changelog and version
* fix bricks.rst
* refactor if statements
* make tidy
* fix README and change try/except to if/else
* update changelog and version
* fix\ docstring
