change pass in paramater to SPDXPackage packageInfoResult in constructor
remove pass paramater master when call mapper class
remove pass in paramater "master" in the constructor. Move pass in
paramater "master" to mappingNonStdLic().
change pass in paramater to packageInfo in constructor.
update outputDocURI code. move package info clone ahead of
nonStandardLicMerger. change pass paramater to packageInfoResult in
fileInfoMerger and packageInfoMerger.