Mindee

Fixes
* :bug: make sure the 'Token' keyword is sent in the auth headers

Changes
* :sparkles: now possible to read file contents at any time
* :hammer: run mypy in pre-commit
* :arrow_up: upgrade pikepdf
* :recycle: minor cleanup / refactor
* :memo: Add basic automated class documentation

Fixes
* :bug: :boom: fix for customer_company_registration being a list of values

Changes
* :sparkles: allow specifying file closing behavior
* :arrow_up: loosen setup.py requirements; update pinned dependencies
* :white_check_mark: better testing of PDF pages

Fixes
* :bug: fix for locale constructor
* :bug: fix custom document in CLI
* :label: declare type info to mypy
* :bug: fix for dumping JSON in CLI

Changes
* :label: set stricter pylint and mypy settings
* :technologist: add pre-commit to ensure proper code formatting
* :art: fixes to import order (isort) and documentation (pydocstyle)

Changes
* :sparkles: update to Invoices API v3
* :recycle: refactor `Endpoint` classes and document building
* :arrow_up: Update PikePDF to 5.0.1
* :sparkles: add a basic logger

Fixes
* :bug: fix sending financial document via the CLI

Changes
* :sparkles: allow getting OCR return in CLI
* :sparkles: Make sure all document information is printed

Fixes
* :bug: fix for invoice to string
* :bug: fix for counting empty PDF pages

Changes
* :arrow_up: Update PikePDF to 4.5.0
* :arrow_up: Update Pillow to 9.0.1 (security fix)