Add static types to source code (mypy)

[novoid]

• Why?

  • I've made good experience with static typing in other tools.
  • Makes it easier to read function parameters.
  • Cleaner code and enhanced readability.
  • Good additional sanity check with mypy

• add static types to all python files:

  • [ ] ./lazyblorg.py
  • [ ] ./__ init __.py
  • [ ] ./config.py
  • [ ] ./lib/__ init __.py
  • [ ] ./lib/orgparser.py
  • [ ] ./lib/htmlizer.py
  • [ ] ./lib/utils.py

• add statis types to all test files:

  • [ ] ./tests/lazyblorg_test.py
  • [ ] ./lib/tests/pypandoc_test.py
  • [ ] ./lib/tests/orgparser_test.py
  • [ ] ./lib/tests/htmlizer_test.py
  • [ ] ./lib/tests/utils_test.py

• [ ] add mypy check to test shell script(s)