Add western_australian_legislation subset with train split

Add tasmanian_legislation subset with train split

Add south_australian_legislation subset with train split

Add queensland_legislation subset with train split

Add nsw_legislation subset with train split

Add nsw_caselaw subset with train split

Add high_court_australia subset with train split

Add federal_register_legislation subset with train split

Add federal_court_australia subset with train split

initial commit