Pycognaize

- Update all tests (75% coverage)
- Merge branch 'master' into major_refactor
- Add Snapshot to `pycognaize.__init__`
- Use scandir in DocumentBuilder._populate_pages
- Update import statement for Mapping
- Fix SnapshotBuilder to work with new Snapshot class
- Remove FieldMapping from DocumentBuilder, use a separate module instead
- Snapshot uses lazy_dict for reading individual documents
- Use `tempfile` module in model.py
- Add doc_file (document.json) to SnapStorageEnum
- Add AreaField to `field.__init__`
- Add to_dict and from_dict methods to Document class
- Add test coverage in tox
- Merged in add_test_for_overwriting_snapshot_in_s3 (pull request 47)
- pull updates from major refactor and merge with current branch, remove test_service, add test_store_snapshot_with_same_name
- Merge branch 'major_refactor' into add_test_for_overwriting_snapshot_in_s3
- add unittests to test snapshot overwriting, change overwriting log message
- Allow 'from pycognaize import Model'
- Add doctests to text_field module
- Update sphynx conf.py
- Update build_docs.sh to also build pdf documentation file
- Update setup.sh logs
- Move all setup configurations from setup.py to setup.cfg
- build_docs.sh generated html and pdf documentations
- Add doc/source/generated/ to .*ignore files

- Add script for building sphinx docs
- Minor docstring changes to Tag `hshift` and `vshift` methods
- SnapshotBuilder.DB added only on function call, to speed up module imports
- Add a single doctest to TextField constructor
- Add simplejson to requirements
- Add Model.execute_genie method

- Major refactored version
- Document > DocumentBuilder
(DocumentBuilder has no instance, only methods for creating Documents,
which are now equivalent to DocumentDataclass objects)
- DocumentDataclass > Document
- SnapshotProcessor > SnapshotBuilder
- Changed folder structure (no services package)
- DataSnapshot > Snapshot, DataRecipe > Recipe
- Add tox configuration for py36, py37, py38, py39, pypy
- Add 'MANIFEST.in' (required for 'TOX' to run properly)
- Add 'setup.cfg' for 'pytest'
- './setup.sh' builds and pushes a version, only if no tests fail
- Update README.md
- All tests pass on py36, py37, py38, py39, pypy

- Add docker push command in build.sh

- Change rest service to threaded=False

- Checkpoint version