Hive Iceberg Compaction: add support for OPTIMIZE TABLE syntax

Presently Hive Iceberg supports Major compaction using HIVE ACID syntax below.

ALTER TABLE name COMPACT MAJOR [AND WAIT] 

Add support for OPTIMIZE TABLE syntax. Example:

OPTIMIZE TABLE name
REWRITE DATA [USING BIN_PACK]
[ ( { FILE_SIZE_THRESHOLD | MIN_INPUT_FILES } = <value> [, ... ] ) ]
WHERE category = 'c1' 

This syntax will be inline with Impala.

Also, OPTIMIZE command is not limited to compaction, but also supports other table maintenance operations.