Use ServiceLoader to determine dialects and driver class names, inspired by Spring Boot's org.springframework.boot.jdbc.DatabaseDriver.

So we don't have to provide the driver and dialect params when creating a Database object:

Database.connect(
    url = "jdbc:mysql://127.0.0.1:3306/ktorm",
    driver = "com.mysql.jdbc.Driver",
    user = "root",
    dialect = MySqlDialect
)