MAINT: migrate code linters to ruff

[jorgepiloto]

Fixes #67 by implementing ruff for unifying flake8, isort, pep8-naming, and pydocstyle.

This is also a good oportunity to identify the style errors we are getting. The following command allows to filer and count these errors:

ruff . | awk '{print $2}' | sort | uniq

With current style ignores, the following ruff errors are present:

D100: Missing docstring in public module
D101: Missing docstring in public class
D102: Missing docstring in public method
D103: Missing docstring in public function
D104: Missing docstring in public package
D105: Missing docstring in magic method
D107: Missing docstring in __init__     
D205: 1 blank line required between summary line and description (fixable by ruff)
D301: Use r""" if any backslashes in a docstring
D400: First line should end with a period (fixable by ruff)
D401: First line of docstring should be in imperative mood
D402: First line should not be the function's signature
D404: First word of the docstring should not be "This"
D415: Section has no content ("{name}")
D417: Missing argument description in the docstring: {name}
E722: Do not use bare except
F403: from {name} import * used; unable to detect undefined names (see issue #18)
F405: {name} may be undefined, or defined from star imports: {sources} (see issue #18)
F821: Undefined name {name}

Filter out particular errors by running:

ruff . | grep "<ERROR NAME>"

Some of the previous issues are easy to fix while others are not.

This pull-request is related with the main issue #6.

[MaxJPRey]

This looks great! I will use it in PyAEDT, as soon as I am done with the pyproject.toml migration.