Sqlite3-to-mysql

* [FIX] fix --mysql-insert-method
* [FIX] modify the existing `check_mysql_json_support` and `check_mysql_fulltext_support` to improve detection of
MariaDB versions
* [FIX] fix connecting with empty MySQL password

* [FIX] fix conversion of SQLite `NUMERIC` data type with precision and scale to MySQL `DECIMAL` with precision and
scale

* [FEAT] add MySQL 8.4 and MariaDB 11.4 support

* [FIX] use `dateutil.parse` to parse SQLite dates

* [FEAT] add `--mysql-skip-create-tables` and `--mysql-skip-transfer-data` options
* [FIX] fix default parameter parsing
* [CHORE] update Sphinx documentation

* [CHORE] add Sphinx documentation