Added adapter for xgboost XGBClassifier - tested with xgboost 2.0.3

[LeLoMAu]

I've run black command on python files inside te2rules, that is why format is changed for some

[groshanlal]

Regarding the whitespace changes: The repo already has some linters like black, flake8 and mypy setup. Please run pre-commit install to automatically setup the linters on your local repo. This will make sure your PR follows the same code formatting standards.

I tried checking out the PR locally and observed some minor formatting errors: The following flake8 checks fail:

te2rules/adapter.py: error: Function is missing a type annotation for one or more arguments
te2rules/adapter.py: error: Item "None" of "Optional[Match[Any]]" has no attribute "group"
Found 2 errors in 1 file (checked 5 source files)

Can you please run pre-commit install and then push another commit on top after resolving the formatting issues?

[LeLoMAu]

Hey @groshanlal, about pre-commit install:

• I needed to update isort to 5.12.0 because of this issue https://github.com/home-assistant/core/issues/86892
• I needed to add Optional type to some function parameters into explainer as mypy was failing on that

[groshanlal]

Looks good to me! Thanks @LeLoMAu.