Fix type issues in TFS support and add typing annotations everywhere.
Review Request #12566 — Created Aug. 24, 2022 and submitted — Latest diff uploaded
TFS lacked any unit tests prior to RBTools 4, and had numerous
type-related issues that broke on Python 3. Users could go back to
Python 2 on earlier versions, but that won't be the case any longer.
This change fixes up all the known type issues. It also adds typing
annotations to all parts of the code, ensuring that we are using the
Documentation in parts have been updated as well to help keep things a
bit more maintainable.
Unit tests pass in Python 3.7-3.11.