added API method to get dictionary of DAP properties for a spaxel
added API method to get dictionary of DAP properties for a spaxel

bretthandrews/marvin,sdss/marvin,sdss/marvin,bretthandrews/marvin,albireox/marvin,albireox/marvin,bretthandrews/marvin,albireox/marvin,sdss/marvin,bretthandrews/marvin,albireox/marvin,sdss/marvin