[bindings/java] Add support for limbo connection using DriverManager

[seonWKim]

Purpose

• Make DriverManager aware of limbo connection

For example, we can now do as follows:

try (Connection connection = DriverManager.getConnection("jdbc:limbo:sample.db")) {
    assertThat(connection).isNotNull();
}

Changes

• Add following .java files in order for the DriverManager to detect Limbo
  • JDBC.java
  • JDBC4Connection.java
  • LimboConfig.java
  • LimboConnection.java
  • LimboDataSource.java

Reference

• This PR has to be merged after following PR
• Related issue

[penberg]

@seonWKim Merging, but would actually prefer that instead of "limbo" we just use "sqlite" in the JDBC connection URL. That's because the aim here is to be compatible with SQLite so that apps don't have to care which one they're using. Having the same JDBC URL is important because it now allows applications to switch to Limbo by switching the driver but not change code or configuration.