Adding back in taffydb to chipper package.json, due to docdash build failure, see https://github.com/phetsims/chipper/issues/1084
Adding back in taffydb to chipper package.json, due to docdash build failure, see https://github.com/phetsims/chipper/issues/1084

phetsims/chipper,phetsims/chipper,phetsims/chipper