Added fully tested type hinting using pyright and mypy. Also fixed a …

…few minor bugs v4.3b.0

Added `increment()` method for easy usage as callback from libraries …

…such as boto v4.2.0

Fixed backwards compatibility with original progressbar library v4.1.1

Delegate unknown attrs to target in WrappingIO thanks to @william-andre…

…. Added threaded progress bar example v4.1.0

Updated to Python 3.10 including type hinting v4.0.0

Added granular progress bar thanks to @pR0Ps v3.55.0

Added percentage label bar and format label bar thanks to @Zannick v3…

….54.0

Replaced deprecated distutils.util thanks to @keszybz v3.53.3

applied isatty fix thanks to @piotrbartman to fix wolph#254 v3.53.2

switch to flake8 only