[SPARK-16675][SQL] Avoid per-record type dispatch in JDBC when writing

## What changes were proposed in this pull request?

Currently, `JdbcUtils.savePartition` is doing type-based dispatch for each row to write appropriate values.

So, appropriate setters for `PreparedStatement` can be created first according to the schema, and then apply them to each row. This approach is similar with `CatalystWriteSupport`.

This PR simply make the setters to avoid this.

## How was this patch tested?

Existing tests should cover this.

Author: hyukjinkwon <gurwls223@gmail.com>

Closes #14323 from HyukjinKwon/SPARK-16675.