Document code

[Rezenders]

Include pydoc strings to methods

• [x] ros_typedb
• [x] rosa_kb
• [ ] rosa_plan
• [ ] rosa_execute
• [ ] rosa_bringup

[Rezenders]

https://sphinx-rtd-tutorial.readthedocs.io/en/latest/docstrings.html https://stackoverflow.com/questions/33945261/how-to-specify-multiple-return-types-using-type-hints https://stackoverflow.com/questions/37570679/how-do-i-document-rtype-for-a-function-that-returns-multiple-possible-data-typ https://peps.python.org/pep-0483/ https://peps.python.org/pep-0484/ https://docs.python.org/3/library/typing.html