Add support for shipping in Australia for Magento table rates

Australian Table Rates

// table rate CSV example:

"Country","Region/State","Zip/Postal Code","Order Subtotal (and above)","Shipping Price"
"AU","*","*","250","0"
"AU","VIC","*","0","10"
"AU","NSW","*","0","12"
"AU","QLD","*","0","12"
"AU","ACT","*","0","12"
"AU","NT","*","0","12"
"AU","WA","*","0","12"
"AU","SA","*","0","12"
"AU","TAS","*","0","12"

// insert regions into directory_country_region table

INSERT
	INTO `your-database-name`.`directory_country_region` 
		(`region_id`, `country_id`, `code`, `default_name`) 
	VALUES 
		(NULL, 'AU', 'VIC', 'Victoria'), 
		(NULL, 'AU', 'NSW', 'New South Wales'),
		(NULL, 'AU', 'QLD', 'Queensland'),
		(NULL, 'AU', 'ACT', 'Australian Captial Territory'),
		(NULL, 'AU', 'NT', 'Northern Territory'),
		(NULL, 'AU', 'WA', 'Western Australia'),
		(NULL, 'AU', 'SA', 'South Australia'),
		(NULL, 'AU', 'TAS', 'Tasmania');

// make sure the region ID is updated to the respective region ids in directory_country_region

INSERT 
	INTO `your-database-name`.`directory_country_region_name` 
		(`locale`, `region_id`, `name`) 
	VALUES 
		('en_AU', '***', 'Victoria'),
		('en_AU', '***', 'South Australia'),
		('en_AU', '***', 'Western Australia'),
		('en_AU', '***', 'Northern Territory'),
		('en_AU', '***', 'Queensland'),
		('en_AU', '***', 'New South Wales'),
		('en_AU', '***', 'Australian Capital Territory'),
		('en_AU', '***', 'Tasmania');