Move the multimap assertions out of api package#15

mattbertolini wants to merge 1 commit intoassertj:mainassertj/assertj-eclipse-collections:mainfrom

mattbertolini:mbertolini/move-multimap-package-remove-apimattbertolini/assertj-eclipse-collections:mbertolini/move-multimap-package-remove-apiCopy head branch name to clipboard