[FLINK-33761][Connector/JDBC] Add Snowflake JDBC Dialect

[borislitvak]

Feature: New JBDC connector dialect - connect to Snowflake.

Testing: As Snowflake is a SAAS offering, I did not provide any tests for it. We don't want to incur any more expenses. Note that it's a new feature. Any potential breakages in this PR should not impact existing users.

Usage Example: This is how I use it in my sample code:

    public static Table getSnowflakeTable(StreamTableEnvironment tEnv, SnowflakeConfig config) {
        tEnv.createTemporaryTable(
                "XXX",
                TableDescriptor.forConnector("jdbc")
                        .schema(Schema.newBuilder()
                                .column("F1", DataTypes.BIGINT())
                                .column("F2", DataTypes.TIMESTAMP().bridgedTo(java.time.LocalDateTime.class))
                                .build()
                        )
                        .option("driver", config.getDriver())
                        // https://docs.snowflake.com/developer-guide/jdbc/jdbc-configure#connection-parameters
                        .option("url", config.getUrl() + "&CLIENT_TIMESTAMP_TYPE_MAPPING=TIMESTAMP_NTZ")
                        .option("table-name", "Snowflake-Sample-Table-Replace-This")
                        .build()
        );
        return tEnv.sqlQuery("SELECT * FROM XXX");
    }

[boring-cyborg]

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[borislitvak]

@davidradl WDYT?

[EcaterinaL]

Hello all,

Is there any progress on this? will it be merged, if yes, when do you think this would be?

Thank you!