[Feature]:add oceanbase oracle mode support

[xxsc0529]

[description]
The Oracle mode of OceanBase is supported close #59
[Test]
Manually package the oceanbase-related code under flyway-communtity-db-support and put it under the dependencies of the project
Project structure

`package com.oceanbase;

import org.flywaydb.core.Flyway;

public class FlywayTest {
public static void main(String[] args) {
Flyway flyway = Flyway.configure().dataSource("jdbc:oceanbase://127.0.0.1:2881/test", "root@oracle", "root").load();
// create flyway_schema_history table
flyway.baseline();
// Delete failed records in the flyway_schema_history table
flyway.repair();
// Perform a data migration
flyway.migrate();
}
}
`
V1_1__create_person_table.sql
create table person(id int not null, name varchar(20) not null);
V2_1__add_person_table.sql
insert into person (id,name) values (1,'xiaozhang');
insert into person (id,name) values (2,'xiaowang');
Test results