Fixed various coding style stuff detected by flake8.
Added .pre-commit-config.yaml:
With command pre_commit install a hook for flake8 will be
installed.
Since CLIENT constants can be used to determine both server
and client capabilities we use now CAPABILITY constants
instead.
CLIENT constants were marked as deprecated in documentation
and will be removed in 2.0 release
- added a thin python wrapper around mariadb module
- added constansts under mariadb.constants (CLIENT, CURSOR, INDICATOR)
- bench and test are now in testing subdirectory
- updated documentation
