Appender - support all appends

[ryanhamilton]

I'm currently using batch insert statements to insert data to duckdb from java. As specified in the docs:

The preferred method for bulk inserts is to use the Appender due to its higher performance. However, when using the Appender is not possbile, the batch writer is available as alternative.

Unfortunately some of my data are dates / times and nested arrays.
Could duckdb_append_date/duckdb_append_time be exposed in java?
and a method of adding arrays?
It would be nice to be able to say appender.append(new int[]{3,2,1}); or similar for each data type.

DuckDB C API

duckdb_state [duckdb_append_date](https://duckdb.org/docs/api/c/appender#duckdb_append_date)(duckdb_appender appender, duckdb_date value);
duckdb_state [duckdb_append_time](https://duckdb.org/docs/api/c/appender#duckdb_append_time)(duckdb_appender appender, duckdb_time value);
duckdb_state [duckdb_append_interval](https://duckdb.org/docs/api/c/appender#duckdb_append_interval)(duckdb_appender appender, duckdb_interval value);
duckdb_state [duckdb_append_blob](https://duckdb.org/docs/api/c/appender#duckdb_append_blob)(duckdb_appender appender, const void *data, idx_t length);
duckdb_state [duckdb_append_data_chunk](https://duckdb.org/docs/api/c/appender#duckdb_append_data_chunk)(duckdb_appender appender, duckdb_data_chunk chunk);