Reference testcontainers#19

I bootstrapped a mysql canned container.

```
ctx := context.Background()
c, err := MySQLContainer(ctx, MySQLContainerRequest{
        RootPassword: "root",
        Database:     "hello",
})
if err != nil {
        t.Fatal(err.Error())
}
defer c.Container.Terminate(ctx)
sqlC, err := c.GetDriver("root", "root", "hello")
if err != nil {
        t.Fatal(err.Error())
}
_, err = sqlC.ExecContext(ctx, "CREATE TABLE example ( id integer, data varchar(32) )")
if err != nil {
        t.Fatal(err.Error())
}
```

Signed-off-by: Gianluca Arbezzano <gianarb92@gmail.com>